[lacnog] Problema accediendo a Yahoo usando IPv6

JORDI PALET MARTINEZ jordi.palet en consulintel.es
Jue Ago 5 17:12:06 -03 2021


Típico problema de PMTUD que esta siendo filtrado en algún punto del camino.

 

Prueba a bajar la MTU de tu router a 1.280, solo por probar, y si funciona, hay que usar herramientas como Scamper, para saber donde …

 

Saludos,

Jordi

@jordipalet

 

 

 

El 5/8/21 21:08, "LACNOG en nombre de Jorge Frater B." <lacnog-bounces en lacnic.net en nombre de jfrater en fratec.com> escribió:

 

Buenas,

 

Quizás alguien haya pasado por algo así y pueda echar una luz a este asunto.

 

Desde hace un tiempo para acá (no sé cuánto exactamente, semanas o meses) no me despliega la página de login de Yahoo usando IPv6 desde mi red.

 

Cabe mencionar que la página de inicio funciona bien y que yo sepa es la única página v6 que no sirve.

 

Si resuelve bien y llego bien tanto en v4 como v6, pero en v6 siempre da el mismo error: 

 

“No se puede acceder a este sitio

login.yahoo.com tardó demasiado en responder.”

 

traceroute login.yahoo.com

traceroute to login.yahoo.com (67.195.204.151), 30 hops max, 60 byte packets

1  vlan-400-bb-zeus.fratec.net (200.59.21.1)  0.398 ms  0.597 ms  0.613 ms

2  186.176.7.73 (186.176.7.73)  1.069 ms  0.920 ms  0.991 ms

3  186.32.0.217 (186.32.0.217)  1.375 ms  1.420 ms  1.305 ms

4  * 190.106.192.240 (190.106.192.240)  41.278 ms *

5  198.32.125.174 (198.32.125.174)  52.647 ms  52.652 ms  41.522 ms

6  ae-1.pat2.miz.yahoo.com (209.191.64.131)  41.743 ms  41.799 ms  43.688 ms

7  ae-6.pat2.dcz.yahoo.com (209.191.64.18)  69.306 ms  71.684 ms  71.765 ms

8  ae-7.pat1.nyc.yahoo.com (209.191.64.150)  86.809 ms  77.293 ms  74.975 ms

9  ae-0.pat2.bfw.yahoo.com (209.191.64.155)  84.554 ms ae-0.pat1.bfw.yahoo.com (209.191.64.153)  97.508 ms ae-0.pat2.bfw.yahoo.com (209.191.64.155)  84.832 ms

10  et-19-0-1.msr2.bf2.yahoo.com (74.6.227.51)  84.376 ms  87.840 ms  98.162 ms

11  et-0-1-0.clr2-a-gdc.bf1.yahoo.com (74.6.122.17)  85.608 ms unknown.yahoo.com (74.6.122.91)  84.508 ms unknown.yahoo.com (74.6.122.55)  96.066 ms

12  lo0.fab3-2-gdc.bf1.yahoo.com (74.6.123.226)  83.381 ms lo0.fab2-2-gdc.bf1.yahoo.com (74.6.123.227)  84.712 ms  85.454 ms

13  usw2-1-lbb.bf1.yahoo.com (98.137.192.169)  86.613 ms  84.769 ms usw1-1-lbb.bf1.yahoo.com (98.137.192.168)  84.817 ms

14  ats2.member.vip.bf1.yahoo.com (67.195.204.151)  84.744 ms  97.336 ms  95.992 ms

 

traceroute6 login.yahoo.com

traceroute to login.yahoo.com (2001:4998:58:304::2000), 30 hops max, 80 byte packets

1  2800:640:d:1::101 (2800:640:d:1::101)  0.632 ms  0.543 ms  0.546 ms

2  * * *

3  * * *

4  * * *

5  2803:2b00:ffff:ffff:ffff:ffff:0:3b (2803:2b00:ffff:ffff:ffff:ffff:0:3b)  50.517 ms  50.370 ms  50.192 ms

6  eqix-ix-dc2-ipv6.yahoo.com (2001:504:0:2:0:1:310:2)  84.506 ms eqnx.pat1.dc6.yahoo.com (2001:504:0:2:0:1:310:1)  82.239 ms eqix-ix-dc2-ipv6.yahoo.com (2001:504:0:2:0:1:310:2)  84.451 ms

7  ae-13.pat1.nyc.yahoo.com (2001:4998:f003:201::1)  84.367 ms ae-14.pat2.nyc.yahoo.com (2001:4998:f003:2::1)  81.830 ms ae-13.pat1.nyc.yahoo.com (2001:4998:f003:201::1)  83.688 ms

8  ae-1.pat1.bfw.yahoo.com (2001:4998:f00b:205::1)  91.859 ms ae-0.pat2.bfw.yahoo.com (2001:4998:f00b:14::1)  90.853 ms  90.721 ms

9  2001:4998:f023:6::1 (2001:4998:f023:6::1)  91.533 ms 2001:4998:f023::1 (2001:4998:f023::1)  111.494 ms et-1-0-0.msr1.bf1.yahoo.com (2001:4998:f023:1::1)  92.606 ms

10  et-12-0-0.clr2-a-gdc.bf1.yahoo.com (2001:4998:58:fe2d::15)  89.288 ms et-12-1-0.clr2-a-gdc.bf1.yahoo.com (2001:4998:58:fe2d::7)  96.494 ms 2001:4998:58:fe1a::1 (2001:4998:58:fe1a::1)  89.186 ms

11  2001:4998:58:fa33::1 (2001:4998:58:fa33::1)  89.716 ms 2001:4998:58:fa34::1 (2001:4998:58:fa34::1)  88.882 ms 2001:4998:58:fa35::1 (2001:4998:58:fa35::1)  97.298 ms

12  et27.usw2-1-lbb.bf1.yahoo.com (2001:4998:58:c42b::1)  91.157 ms et32.usw1-1-lbb.bf1.yahoo.com (2001:4998:58:ba2a::1)  92.468 ms et25.usw2-1-lbb.bf1.yahoo.com (2001:4998:58:c82b::1)  96.310 ms

13  ats2.member.vip.bf1.yahoo.com (2001:4998:58:304::2000)  90.727 ms  88.782 ms  90.096 ms

 

Saludos,

 

 

Jorge Frater

Sistemas Fratec S.A.

 

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