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--></style></head><body lang=ES link=blue vlink=purple style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal><span lang=ES-TRAD style='font-size:12.0pt;mso-fareast-language:EN-US'>Hi Mike,<o:p></o:p></span></p><p class=MsoNormal><span lang=ES-TRAD style='font-size:12.0pt;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt;mso-fareast-language:EN-US'>I guess the thread was distracted. The original poster, unless I recall it incorrectly was speaking about some kind of IPv4 being blocked. Then Ariel mention that it is becoming frequent with CGN.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt;mso-fareast-language:EN-US'>I just added the information that I’ve at hand.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt;mso-fareast-language:EN-US'>Anyway, I’m actually promoting your IPv4 brokerage business! Because the conclusion is clear: becomes much cheaper investing in transferring IPv4 addresses instead of buying the CGN. :-)<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt;mso-fareast-language:EN-US'><o:p> </o:p></span></p><div><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt;color:black'>Ariel can add data that he knows about if those are temporary black-listed addressed or permanent, but in the case of PSN it the way I said. Just search the relevant threads in NANOG. I’ve heard the same in several customers, no difference.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt;color:black'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt;color:black'>I also mention a few days ago in this list, that may be part of the permanent blocking by PSN is to “help” the customers to buy the new model that support IPv6 …<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt;color:black'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt;color:black'>Regards,<o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt'><span lang=EN-US style='font-size:12.0pt;color:black;mso-fareast-language:EN-US'>Jordi<o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt'><span lang=EN-US style='font-size:12.0pt;color:black;mso-fareast-language:EN-US'>@jordipalet<o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt'><span lang=EN-US style='font-size:12.0pt;color:black;mso-fareast-language:EN-US'><o:p> </o:p></span></p></div><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt;mso-fareast-language:EN-US'><o:p> </o:p></span></p><div><div><p class=MsoNormal style='margin-left:35.4pt'>El 3/8/21 14:56, "Mike Burns" <<a href="mailto:mike@iptrading.com">mike@iptrading.com</a>> escribió:<o:p></o:p></p></div></div><div><p class=MsoNormal style='margin-left:35.4pt'><o:p> </o:p></p></div><div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Hi Jordi,<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Thanks for your reply.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>I did not differentiate between internal and public blacklists because that is irrelevant here.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>The original poster did not mention that he was statically mapping ports to customers, I think you are making an assumption here.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>NAT444/CGN doesn't require this, and I have no information on the percentage of CGN implementations utilizing static port-to-customer mappings.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Do you?<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Ariel did not mention anything about static blacklists in his original post. For all we know, the bank's blacklists are temporary.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>I am very doubtful that the number of 464XLAT packets hitting hosts equal the number of packets emanating from CGNs, so the absence of reported 464XLAT problems like this is not dispositive.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Or that the many operators using NAT444 will be switching quickly to anything else, so the concept of segregating problematic traffic to keep part of the block clean is quite valid and interesting.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Can you point me to any public statement of support for a permanent internal blacklist?<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>I am guessing the Sony statement was old, but I could be wrong.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>If you consider the architecture and mostly temporary use of IPv4 addresses in today's Internet, permanent blacklists are counter-productive to the blacklister, as miscreants will naturally rotate into new address blocks, and the permanent listing will only have the effect of blocking normal users. Just as Ariel was feeling the heat from his customers, so will the banks and other permanent blacklisters.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Regards,<br>Mike<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p> </o:p></span></p></div><div style='border:none;border-top:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 0cm;margin-top:7.5pt;margin-bottom:7.5pt'><p class=MsoNormal style='margin-left:35.4pt;mso-line-height-alt:0pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p> </o:p></span></p></div><div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p> </o:p></span></p></div><div id="Zm-_Id_-Sgn1"><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>---- On Tue, 03 Aug 2021 08:12:12 -0400 <b>JORDI PALET MARTINEZ vía LACNOG_ <lacnog@lacnic.net></b> wrote ----<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p> </o:p></span></p></div><blockquote><div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:12.0pt;font-family:"Verdana",sans-serif'>Hi Mike,</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:12.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:12.0pt;font-family:"Verdana",sans-serif'>That’s why I insisted is not the same as a black-list, even if we name it the same …</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:12.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:12.0pt;font-family:"Verdana",sans-serif'>I don’t know if PSN (Sony) has publicly said that, but it is a fact, it has been discussed several times in many operator NOGs, including NANOG if I recall correctly.</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:12.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:12.0pt;font-family:"Verdana",sans-serif'>It is not a “public” blacklist. It is an internal one. Suddenly you realize that PSN connections from IP ranges used in CGN (NAT444) stop working. You try to contact Sony for resolving that, and you never get it resolved until you change the IP range in the CGN.</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:12.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:12.0pt;font-family:"Verdana",sans-serif'>PSN is an example, I’ve seen several other cases, including financial services (I recall Ariel mention it in the list the other day).</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:12.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:12.0pt;font-family:"Verdana",sans-serif'>In 464XLAT, the translation is not pre-allocated port blocks to each customer (such as NAT444/CGN DS-Lite, lw4o6, MAP-T and MAP-E), it is a dynamic mechanism. You have the info very well described for all the IPv6-only mechanisms at <a href="https://datatracker.ietf.org/doc/draft-ietf-v6ops-transition-comparison/" target="_blank">https://datatracker.ietf.org/doc/draft-ietf-v6ops-transition-comparison/</a>.</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:12.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:12.0pt;font-family:"Verdana",sans-serif'>Up to now, none of the operators using 464XLAT has observed, any similar issue.</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:12.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:12.0pt;font-family:"Verdana",sans-serif'>This document is on-going work, but basically is done, if you follow the video of the last week v6ops IETF meeting, you will see that is only pending on some performance measurements before going to the last-call, so I don’t expect major changes in the parts of the text that relate to the difference in the translations.</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:12.0pt;font-family:"Verdana",sans-serif;color:black'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:12.0pt;font-family:"Verdana",sans-serif;color:black'>Saludos,</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:12.0pt;font-family:"Verdana",sans-serif;color:black'>Jordi</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:12.0pt;font-family:"Verdana",sans-serif;color:black'>@jordipalet</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:12.0pt;font-family:"Verdana",sans-serif;color:black'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:12.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:12.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>El 3/8/21 14:04, "Mike Burns" <<a href="mailto:mike@iptrading.com" target="_blank">mike@iptrading.com</a>> escribió:<o:p></o:p></span></p></div></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> <o:p></o:p></span></p></div><div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Hi Jordi,</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>In my experience only the crudest of blacklists are static.</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Most are dynamic, with blacklist entries aging out over time if the traffic that triggered the listing is no longer present.</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>This is because those who use blacklists know that ip addresses are generally leased to eyeballs for a limited time, then they go back in the dhcp pool.</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Can you provide evidence for your statement below that blacklist entries are permanent?</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>And can you help me understand why translating into IPv4 via any mechanism before reaching the banks will not lead to those addresses also possibly ending up on a blacklist?</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Thanks and regards,</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div style='border:none;border-top:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 0cm;margin-top:7.5pt;margin-bottom:7.5pt'><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Mike</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div style='border:none;border-top:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 0cm;margin-top:7.5pt;margin-bottom:7.5pt'><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><div id="x_1755163880Zm-_Id_-Sgn1"><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>---- On Tue, 03 Aug 2021 05:01:37 -0400 <b>JORDI PALET MARTINEZ vía LACNOG_ <<a href="mailto:lacnog@lacnic.net" target="_blank">lacnog@lacnic.net</a>></b> wrote ----</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:12.0pt;font-family:"Verdana",sans-serif'>Creo que es un caso diferente. Cuando hablamos de CGN (NAT444). En esos casos la solución que tu aplicas con toda seguridad no sirve para nada. Si o si, PSN te bloquea las IPs que tienes en el CGN, y tu usas otras, te las vuelve a bloquear, y así sucesivamente. Jamás las “saca” de la lista negra, y por lo tanto solo te queda una solución: obtener otras IPs – Lógicamente es mas barato desplegar IPv6, siendo además una solución a largo plazo.</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:12.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:12.0pt;font-family:"Verdana",sans-serif;color:black'>Saludos,</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:12.0pt;font-family:"Verdana",sans-serif;color:black'>Jordi</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:12.0pt;font-family:"Verdana",sans-serif;color:black'>@jordipalet</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:12.0pt;font-family:"Verdana",sans-serif;color:black'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:12.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:12.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Yo soy consultor para varios ISPs y lo manejo de la siguiente manera.</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>tomemos como ejemplo que usamos 1 /24 completo de publicas para natear</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>45.1.1.x/24</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>45.1.1.1 no la usamos</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>45.1.1.2 - 45.1.1.30 nateamos todo lo que es TCP 21,22,25,587</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>45.1.1.31 - 45.1.1.50 nateo especiales de algunos sitios en particular.</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>45.1.1.51 - 45.1.1.254 nateo general de clientes.</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Con esto logramos que las ips de navegacion nunca esten contaminadas por ataques smtp, telnet o ssh.</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Al hacer esto bajo drasticamente los problemas por listas negras.</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Espero les sirva.</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Saludos</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div></div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>On Fri, Jul 30, 2021 at 1:02 PM Cesar E. Labrador C. <<a href="mailto:cesarlabradorcastro01@gmail.com" target="_blank">cesarlabradorcastro01@gmail.com</a>> wrote:</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0cm;margin-bottom:5.0pt'><div><p style='margin-left:106.2pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Buenos dias;</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p style='margin-left:106.2pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Aqui en Venezuela particularmente he tenido este mismo problema en diferentes ISP que soy Consultor y Gerente de Operaciones en el NOC, se repite la misma historia y no solo con Nexflix sino con Disney+ entre otras Plataformas de Streaming asi como tambien con el Banking y Apps mas que todas nuevas.</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p style='margin-left:106.2pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Es un dolor de cabeza constante para el personal de Soporte que al final a nivel del NOC se debe resolver...</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p style='margin-left:106.2pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Estoy de acuerdo que lo ideal seria la implementacion de IPv6 pero el detalle es la Resistencia al Cambio de los Directivos de los ISP, sin embargo Yo sigo en la lucha para cambiar la cultura del uso de IPv4 e ir migrando al IPv6 a traves de mecanismos de transicion como NAT64 u otros metodos. No es tarea Facil pero hay vamos..</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p style='margin-left:106.2pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Saludos cordiales...</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>El 30/7/2021 a las 10:22 a. m., <a href="mailto:telecomunicaciones@arcoop.com.ar" target="_blank">telecomunicaciones@arcoop.com.ar</a> escribió:</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><p style='margin-left:106.2pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Buenos días. Una consulta que tiene que ver con el tema en cierta forma, hace unos días que estamos teniendo problema con Nexflix, en los usuarios que están detrás de un NAT, después de muchas pruebas he podido comprobar que si asigno al cliente una IP publica todo sale andando, alguien mas tiene ese problema??</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p style='margin-left:106.2pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p style='margin-left:106.2pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>saludos</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><p style='margin-left:106.2pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p style='margin-left:106.2pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>El 30-07-2021 11:14, Fernando Frediani escribió:</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><blockquote style='border:none;border-left:solid #1010FF 1.5pt;padding:0cm 0cm 0cm 5.0pt;margin-left:0cm;margin-top:5.0pt;margin-right:0cm;margin-bottom:5.0pt'><p style='margin-left:106.2pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Hola</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p style='margin-left:106.2pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Este es un problema del que he estado hablando y desafortunadamente parece que se está volviendo cada vez más común y también tengo el mismo entendimiento que Ariel donde en escenarios, especialmente CGNAT, con muchas conexiones detrás de una IPv4 pública, puede terminar siendo interpretados como ataques y los sistemas de mitigación DDoS terminan bloqueando estas direcciones, lo que en consecuencia bloquea a muchos otros usuarios detrás de esa misma dirección pública.</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><br><span class=size>El problema es que asignar nuevas direcciones IPv4 a un CGNAT no es tan sencillo, especialmente en tiempos de escasez de IPv4.</span><br><br><span class=size>Mientras los bancos y el contenido en general sigan descuidando el soporte de IPv6 y mientras esperamos y respetemos pacientemente "la buena voluntad" de que cada uno tenga IPv6 operativo, un intento en los sistemas CGNAT existentes, si compatible, es tratar de difundir a los usuarios tanto como sea posible posible a través de un mayor número de direcciones IPv4 diferentes disponibles en el grupo disponible para el equipo de CGNAT.</span><o:p></o:p></span></p><p style='margin-left:106.2pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Fernando</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>On 29/07/2021 13:35, Ariel Weher wrote:</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><blockquote style='border:none;border-left:solid #1010FF 1.5pt;padding:0cm 0cm 0cm 5.0pt;margin-left:0cm;margin-top:5.0pt;margin-right:0cm;margin-bottom:5.0pt'><div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Courier New"'>Muy buenas tardes</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Courier New"'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Courier New"'>El inconveniente ocurre desde hace unos meses atrás y es cada día más frecuente.</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Courier New"'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Courier New"'>Algunos sitios, principalmente portales de banca online están empezando a filtrar direcciones IP asignadas a cajas de CGN. Aparentemente deben estar basados en alguna fuente de información externa tipo blacklist.</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Courier New"'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Courier New"'>Entiendo que hay alguna consideración de "seguridad" en donde estos bancos determinan que muchas sesiones desde un mismo bloque IPv4 (CGN) es considerado un potencial peligro y deciden filtrarlos. En un principio parecía que se mandaba el tráfico a blackhole, pero durante el último tiempo agregaron una página de error 403 en donde estos bancos informan que el ISP "tiene algún problema en su infraestructura" e invitan a sus clientes a abrir un reclamo con su ISP para poder volver a acceder al servicio de homebanking.</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Courier New"'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Courier New"'>Ninguno de estos portales tiene registros AAAA publicados, por lo que (al momento de escribir este mail) desplegar IPv6 en el ISP no resolvería el problema.</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Courier New"'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Courier New"'>Una solución temporal sería asignar IPv4 nuevas a los CGN o bien asignar bloques IPv4 públicos a los clientes para que puedan acceder a estos portales, pero está claro que luego del agotamiento esto es inviable. Tampoco está claro cuánto dura en el tiempo una asignación dedicada hasta que sea bloqueada nuevamente.</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Courier New"'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Courier New"'>Otro grave problema es que algunos clientes del ISP pueden acceder al servicio y otros no (los CGN-eados), creando un verdadero escenario de "el ISP no anda bien". Personalmente he intentado comunicarme con los responsables de networking de estas organizaciones vía los datos de whois y hasta el momento nunca me respondieron.</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Courier New"'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Courier New"'>IMHO, en caso de que estos portales continúen con estas prácticas, puede pasar que los ISP en conjunto también decidan filtrar para todos sus clientes los sitios que hacen este tipo de mala práctica, y se terminará afectando la neutralidad de la red.</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Courier New"'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Courier New"'>Saludos!</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div></div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>On Mon, Jul 26, 2021 at 8:53 AM Carlos Marcelo Martinez Cagnazzo <<a href="mailto:carlosm3011@gmail.com" target="_blank">carlosm3011@gmail.com</a>> wrote:</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0cm;margin-bottom:5.0pt'><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Hola Leandro</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Si pudieras darnos información concreta por privado vemos si desde lacnic podemos hacer algo</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Carlos</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><div id="x_-839437283gmail-m_3863571007712195922gmail-m_4902269221798225226gmail-m_-176297755498524181cm_footer"><div id="x_-839437283gmail-m_3863571007712195922gmail-m_4902269221798225226gmail-m_-176297755498524181cm_sent_from"><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>via <a href="https://cloudmagic.com/k/d/mailapp?ct=pi&cv=10.0.58&pv=14.6&source=email_footer_2" target="_blank">Newton Mail</a></span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div></div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><div id="x_-839437283gmail-m_3863571007712195922gmail-m_4902269221798225226gmail-m_-176297755498524181cm_replymail_content_wrap"><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>On Mon, Jul 26, 2021 at 8:49, Leandro Roggerone <<a href="mailto:leandro@tecnetmza.com.ar" target="_blank">leandro@tecnetmza.com.ar</a>> wrote:</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><div id="x_-839437283gmail-m_3863571007712195922gmail-m_4902269221798225226gmail-m_-176297755498524181cm_replymail_content_1627300313"><blockquote style='border:none;border-left:solid #D6D6D6 1.0pt;padding:0cm 0cm 0cm 8.0pt;margin-left:0cm;margin-top:5.0pt;margin-right:0cm;margin-bottom:5.0pt'><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Buenas, colegas ; </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><br><span class=size>Para comentarles sobre una situacion que se esta repitiendo ultimamente en nuestro ips.</span><br><span class=size>Estamos recibiendo reclamos sobre clientes que no pueden acceder a distintos servicios:</span><br><span class=size>Ej,</span><br><span class=size>Portales privados , apps de pedidos de comida , Home banking , etc.</span><br><span class=size>En la mayoria de estos intentos se devuelven mensajes refiriendose a problemas con nuestras ips.</span><br><span class=size>Les queria consultar si han tenido este inconveniente y como han procedido para solucionarlo.</span><br><span class=size>Desde aqui , ya hemos intentado lo siguiente:</span><br><span class=size>a )Contactar al webmaster de los sitios:</span><br><span class=size>Esto es practicamente imposible, la ayuda en los sitios está referida al sitio en si y no a la conectividad.</span><br><span class=size>b ) Buscar nuestra ip en listas negras , por ejemplo a travez de mxtoolbox.</span><br><span class=size>De aqui he logrado obtener una lista de ips bloqueadas , pero sobre todo para hacer uso de servidores de correo el cual no es mi caso.</span><br><br><span class=size>Cualquier info que nos pueda ayudar sera bienvenida.</span><br><span class=size>Leandro.</span><o:p></o:p></span></p><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div></div><div id="x_-839437283gmail-m_3863571007712195922gmail-m_4902269221798225226gmail-m_-176297755498524181DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2"><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><table class=MsoNormalTable border=1 cellpadding=0 width=542 style='width:406.5pt;margin-left:106.2pt;border:none;border-top:solid #D3D4DE 1.0pt'><tr><td width=298 style='width:223.65pt;border:none;padding:13.5pt 13.5pt 13.5pt 13.5pt'><p class=MsoNormal><a href="https://tr.cloudmagic.com/h/v6/link-track/1.0/1627300392215927-1361e986-2592-dc9c-c8d2-3bfb55258755/1627300367/96f2d3060286ecbab9150cfe7cb38c63/81b9fdcdae77e81bac55bf25a3dfe46b/c685fcd416a89ab357b7e28c4a5ee604?redirect_uri=https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail" target="_blank"><b><span style='text-decoration:none'>¡Error! Nombre de archivo no especificado.</span></b></a><o:p></o:p></p></td><td width=238 style='width:178.35pt;border:none;padding:12.75pt 12.75pt 12.75pt 12.75pt'><p class=MsoNormal style='line-height:13.5pt'><span class=size><span style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#41424E'>Libre de virus. <a href="https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail" target="_blank"><span class=colour><span style='color:#4453EA'>www.avast.com</span></span></a></span></span><o:p></o:p></p></td></tr></table></div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif;color:white'><br></span><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>_______________________________________________ LACNOG mailing list <a href="mailto:LACNOG@lacnic.net" target="_blank">LACNOG@lacnic.net</a> <a href="https://tr.cloudmagic.com/h/v6/link-track/1.0/1627300392215944-1bcc89ef-b287-24fd-c2a0-56a56fb20eae/1627300367/96f2d3060286ecbab9150cfe7cb38c63/81b9fdcdae77e81bac55bf25a3dfe46b/c685fcd416a89ab357b7e28c4a5ee604?redirect_uri=https://mail.lacnic.net/mailman/listinfo/lacnog" target="_blank">mail.lacnic.net/mailman/listinfo/lacnog</a> Cancelar suscripcion: <a href="https://tr.cloudmagic.com/h/v6/link-track/1.0/1627300392215954-4027e3bf-48c7-d329-7516-0fb3921ad776/1627300367/96f2d3060286ecbab9150cfe7cb38c63/81b9fdcdae77e81bac55bf25a3dfe46b/c685fcd416a89ab357b7e28c4a5ee604?redirect_uri=https://mail.lacnic.net/mailman/options/lacnog" target="_blank">mail.lacnic.net/mailman/options/lacnog</a></span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></blockquote></div></div></div></div></div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>_______________________________________________</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><br><span class=size>LACNOG mailing list</span><br><span class=size><a href="mailto:LACNOG@lacnic.net" target="_blank">LACNOG@lacnic.net</a></span><br><span class=size><a href="https://mail.lacnic.net/mailman/listinfo/lacnog" target="_blank">https://mail.lacnic.net/mailman/listinfo/lacnog</a></span><br><span class=size>Cancelar suscripcion: <a href="https://mail.lacnic.net/mailman/options/lacnog" target="_blank">https://mail.lacnic.net/mailman/options/lacnog</a></span><o:p></o:p></span></p></blockquote></div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><pre style='margin-left:106.2pt'>_______________________________________________<o:p></o:p></pre><pre style='margin-left:106.2pt'>LACNOG mailing list<o:p></o:p></pre><pre style='margin-left:106.2pt'><a href="mailto:LACNOG@lacnic.net" target="_blank">LACNOG@lacnic.net</a><o:p></o:p></pre><pre style='margin-left:106.2pt'><a href="https://mail.lacnic.net/mailman/listinfo/lacnog" target="_blank">https://mail.lacnic.net/mailman/listinfo/lacnog</a><o:p></o:p></pre><pre style='margin-left:106.2pt'>Cancelar suscripcion: <a href="https://mail.lacnic.net/mailman/options/lacnog" target="_blank">https://mail.lacnic.net/mailman/options/lacnog</a><o:p></o:p></pre></blockquote><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Courier New"'>_______________________________________________</span></span><span style='font-size:10.0pt;font-family:"Courier New"'><br><span class=x1755163880font>LACNOG mailing list</span><br><span class=x1755163880font><a href="mailto:LACNOG@lacnic.net" target="_blank">LACNOG@lacnic.net</a></span><br><span class=x1755163880font><a href="https://mail.lacnic.net/mailman/listinfo/lacnog" target="_blank">https://mail.lacnic.net/mailman/listinfo/lacnog</a></span><br><span class=x1755163880font>Cancelar suscripcion: <a href="https://mail.lacnic.net/mailman/options/lacnog" target="_blank">https://mail.lacnic.net/mailman/options/lacnog</a></span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div></blockquote><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><br><span class=size>ARCOOP - Barracuda Spam & Virus Firewall </span><o:p></o:p></span></p><pre style='margin-left:106.2pt'>_______________________________________________<o:p></o:p></pre><pre style='margin-left:106.2pt'>LACNOG mailing list<o:p></o:p></pre><pre style='margin-left:106.2pt'><a href="mailto:LACNOG@lacnic.net" target="_blank">LACNOG@lacnic.net</a><o:p></o:p></pre><pre style='margin-left:106.2pt'><a href="https://mail.lacnic.net/mailman/listinfo/lacnog" target="_blank">https://mail.lacnic.net/mailman/listinfo/lacnog</a><o:p></o:p></pre><pre style='margin-left:106.2pt'>Cancelar suscripcion: <a href="https://mail.lacnic.net/mailman/options/lacnog" target="_blank">https://mail.lacnic.net/mailman/options/lacnog</a><o:p></o:p></pre></blockquote><pre style='margin-left:106.2pt'>-- <o:p></o:p></pre><pre style='margin-left:106.2pt'>Cesar E. Labrador C.<o:p></o:p></pre><pre style='margin-left:106.2pt'>Consultor Especialista en Telecomunicaciones y Ciberseguridad.<o:p></o:p></pre><pre style='margin-left:106.2pt'>Enrutamiento en Internet, Ciberseguridad, Gestion de Red: NOC y SOC, Redes Inalambricas.<o:p></o:p></pre><pre style='margin-left:106.2pt'>Instructor Programa de Academias Cisco.<o:p></o:p></pre></div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>_______________________________________________</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><br><span class=size>LACNOG mailing list</span><br><span class=size><a href="mailto:LACNOG@lacnic.net" target="_blank">LACNOG@lacnic.net</a></span><br><span class=size><a href="https://mail.lacnic.net/mailman/listinfo/lacnog" target="_blank">https://mail.lacnic.net/mailman/listinfo/lacnog</a></span><br><span class=size>Cancelar suscripcion: <a href="https://mail.lacnic.net/mailman/options/lacnog" target="_blank">https://mail.lacnic.net/mailman/options/lacnog</a></span><o:p></o:p></span></p></blockquote></div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>--</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><div><div><div><div><div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><b><span style='font-size:14.0pt;font-family:"Trebuchet MS",sans-serif;color:black'>Roberto Boero Mansilla</span></b></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:Wingdings;color:#625E5E'>-</span></span><span class=size><span style='font-size:10.0pt;font-family:"Trebuchet MS",sans-serif;color:#625E5E'> </span></span><span class=size><span style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#625E5E'>Los Nogales 535, Marcos Paz</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#625E5E'> Buenos Aires</span></span><span class=size><span style='font-size:10.0pt;font-family:"Arial",sans-serif;color:gray'> |</span></span><span class=size><span style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#625E5E'> Argentina</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif;color:#625E5E'> </span></span><span class=size><span style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#777777'>+54 (911) 6284-6585</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:Wingdings;color:#625E5E'>*</span></span><span class=size><span style='font-size:10.0pt;font-family:"Trebuchet MS",sans-serif;color:#625E5E'> </span></span><span class=size><span style='font-size:10.0pt;font-family:"Arial",sans-serif'><a href="mailto:jmpoco@somtik.com" target="_blank">rboero@somtik.com</a></span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:Webdings;color:#625E5E'>Â</span></span><span class=size><span style='font-size:10.0pt;font-family:"Trebuchet MS",sans-serif;color:#625E5E'> </span></span><span class=size><span style='font-size:10.0pt;font-family:"Arial",sans-serif'><a href="http://www.somtik.com" target="_blank"><span class=colour><span style='color:#0563C1'>www.somtik.com</span></span></a></span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span class=size><b><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>¡Error! Nombre de archivo no especificado.</span></b></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div></div></div></div></div></div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>_______________________________________________ LACNOG mailing list <a href="mailto:LACNOG@lacnic.net" target="_blank">LACNOG@lacnic.net</a> <a href="https://mail.lacnic.net/mailman/listinfo/lacnog" target="_blank">https://mail.lacnic.net/mailman/listinfo/lacnog</a> Cancelar suscripcion: <a href="https://mail.lacnic.net/mailman/options/lacnog" target="_blank">https://mail.lacnic.net/mailman/options/lacnog</a></span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><br><span class=size>**********************************************</span><br><span class=size>IPv4 is over</span><br><span class=size>Are you ready for the new Internet ?</span><br><span class=size><a href="http://www.theipv6company.com" target="_blank">http://www.theipv6company.com</a></span><br><span class=size>The IPv6 Company</span><br><br><span class=size>This electronic message contains information which may be privileged or confidential. The information is intended to be for the exclusive use of the individual(s) named above and further non-explicilty authorized disclosure, copying, distribution or use of the contents of this information, even if partially, including attached files, is strictly prohibited and will be considered a criminal offense. If you are not the intended recipient be aware that any disclosure, copying, distribution or use of the contents of this information, even if partially, including attached files, is strictly prohibited, will be considered a criminal offense, so you must reply to the original sender to inform about this communication and delete it.</span><o:p></o:p></span></p></div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>_______________________________________________</span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><br><span class=size>LACNOG mailing list </span><br><span class=size><a href="mailto:LACNOG@lacnic.net" target="_blank">LACNOG@lacnic.net</a> </span><br><span class=size><a href="https://mail.lacnic.net/mailman/listinfo/lacnog" target="_blank">https://mail.lacnic.net/mailman/listinfo/lacnog</a> </span><br><span class=size>Cancelar suscripcion: <a href="https://mail.lacnic.net/mailman/options/lacnog" target="_blank">https://mail.lacnic.net/mailman/options/lacnog</a></span><o:p></o:p></span></p></blockquote></div><div><p class=MsoNormal style='margin-left:35.4pt'><span class=size><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'> </span></span><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></p></div></div><p class=MsoNormal style='mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>**********************************************<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>IPv4 is over<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Are you ready for the new Internet ?<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><a href="http://www.theipv6company.com" target="_blank">http://www.theipv6company.com</a><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>The IPv6 Company<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>This electronic message contains information which may be privileged or confidential. The information is intended to be for the exclusive use of the individual(s) named above and further non-explicilty authorized disclosure, copying, distribution or use of the contents of this information, even if partially, including attached files, is strictly prohibited and will be considered a criminal offense. If you are not the intended recipient be aware that any disclosure, copying, distribution or use of the contents of this information, even if partially, including attached files, is strictly prohibited, will be considered a criminal offense, so you must reply to the original sender to inform about this communication and delete it.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p> </o:p></span></p></div></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>_______________________________________________<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>LACNOG mailing list <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>LACNOG@lacnic.net <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>https://mail.lacnic.net/mailman/listinfo/lacnog <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Cancelar suscripcion: https://mail.lacnic.net/mailman/options/lacnog <o:p></o:p></span></p></div></blockquote></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p> </o:p></span></p></div></div><p class=MsoNormal style='margin-left:35.4pt'><br><br><o:p></o:p></p></div><br>**********************************************<br>
IPv4 is over<br>
Are you ready for the new Internet ?<br>
http://www.theipv6company.com<br>
The IPv6 Company<br>
<br>
This electronic message contains information which may be privileged or confidential. The information is intended to be for the exclusive use of the individual(s) named above and further non-explicilty authorized disclosure, copying, distribution or use of the contents of this information, even if partially, including attached files, is strictly prohibited and will be considered a criminal offense. If you are not the intended recipient be aware that any disclosure, copying, distribution or use of the contents of this information, even if partially, including attached files, is strictly prohibited, will be considered a criminal offense, so you must reply to the original sender to inform about this communication and delete it.<br>
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