IPv6 over OpenVPN

Petr Benes Petr.Benes at utef.cvut.cz
Sun Jul 15 13:32:24 UTC 2007


> No go.
> I can create the tunnel; I can see sit0 with all the binded
> interfaces, but I cannot ping the other end.
> Any idea what to check?
>
> - Gilboa

What gives ping6 -I TUNNEL_NAME ff02::1? Should look like:
PING ff02::1(ff02::1) from fe80::c0a8:fe01 dur-tun: 56 data bytes
64 bytes from fe80::c0a8:fe01: icmp_seq=1 ttl=64 time=0.097 ms
64 bytes from fe80::c0a8:ff01: icmp_seq=1 ttl=64 time=36.5 ms (DUP!)
64 bytes from fe80::c0a8:fe01: icmp_seq=2 ttl=64 time=0.021 ms
64 bytes from fe80::c0a8:ff01: icmp_seq=2 ttl=64 time=15.5 ms (DUP!)
64 bytes from fe80::c0a8:fe01: icmp_seq=3 ttl=64 time=0.021 ms

You should check the firewall and, may be, consider beeing more specific 
about your tunnel setup.

Petr




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