[LAC-TF] Herramienta verificacion del Soporte IPv6

Azael Fernandez Alcantara azael at redes.unam.mx
Mon Mar 30 15:00:37 BRT 2009

Buen Dia,

Les retransmito esta info. de la Herramienta IPv6 CARE.


---------- Forwarded message ----------
Date: Mon, 30 Mar 2009 10:50:16 +0200
From: Etienne DUBLE <etienne.duble at urec.cnrs.fr>
Subject: IPv6 CARE: monitor execution of programs and assess their IPv6

Hello all,
For those interested in IPv6 migration of networking applications, I
would like to point you to this open source tool at
It is called "IPv6 CARE": "IPv6 Compliance Automatic Runtime
I developed it as part of the EGEE project, in order to ease the
transition to IPv6 of the grid middleware called "gLite".

Here is an example of usage.
We want to know if a version of telnet is IPv6 compliant or not. We
prefix the command and run it this way:

$ ipv6_care check -v telnet localhost 9876
IPV6 CARE detected: inet_addr() with [ cp=localhost ]
IPV6 CARE detected: gethostbyname() with [ name=localhost ]
IPV6 CARE detected: inet_ntoa() with [ in= ]
IPV6 CARE detected: socket() with [ domain=AF_INET type=SOCK_STREAM
protocol=ip ]
IPV6 CARE detected: connect() with [ socket=3 address.ip=
address.port=9876 ]
telnet: Unable to connect to remote host: Connection refused
IPv6 diagnosis for 'telnet localhost 9876' was generated
in: /tmp/ipv6_diagnosis/telnet/by_pid/pid_6541

We can easily see that this version of telnet is not IPv6 compliant
because some of the function calls detected are not IPv6 compliant (for
ex. gethostbyname()).
If needed, more information (location of those function calls in the
source code, tip about how to avoid them etc.) has been generated in the
reported directory (/tmp/ipv6_diagnosis/telnet/by_pid/pid_6541).

The documentation is also available on the sourceforge download page of
the tool.
Feel free to send me any question, comment, or improvement suggestion
you may have.

Thank you,
Etienne Duble

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