[Users] IPv6 ??

[Jan Tomasek]

Hi,

Thorsten Schifferdecker wrote:
> @jan: how get your IPv6 connectivity ?

I've static setup on HW node:

iface eth0 inet6 static
        post-up /sbin/sysctl -w "net.ipv6.conf.eth0.autoconf=0"
        post-up /sbin/sysctl -w "net.ipv6.conf.all.forwarding=1"
        address 2001:718:1:e::23:3254
        gateway 2001:718:1:e::1
        netmask 64

Traceroute from HW node:

> chlivek:~# traceroute6 2001:838:1:1:210:dcff:fe20:7c7c
> traceroute to 2001:838:1:1:210:dcff:fe20:7c7c (2001:838:1:1:210:dcff:fe20:7c7c) from 2001:718:1:e::23:3254, 30 hops max, 16 byte packets
>  1  2001:718:1:e::1 (2001:718:1:e::1)  0.983 ms  4.869 ms  2.949 ms
>  2  2001:718:0:607::1 (2001:718:0:607::1)  4.943 ms  4.823 ms  2.895 ms
>  3  2001:718:0:607::2 (2001:718:0:607::2)  4.929 ms  4.867 ms  2.968 ms
>  4  ipv6-ge-2-1-0.prg11.ip.tiscali.net (2001:7f8:14::3:1)  3.359 ms  3.328 ms  4.439 ms
>  5  so-5-1-0.fra40.ip6.tiscali.net (2001:668:0:2::1:291)  9.113 ms  8.861 ms  14.915 ms
>  6  so-4-1-0.dus11.ip6.tiscali.net (2001:668:0:2::1:402)  12.322 ms  12.146 ms  15.893 ms
>  7  so-7-0-0.ams22.ip6.tiscali.net (2001:668:0:2::1:482)  15.88 ms  16.848 ms  15.919 ms
>  8  so-6-0-0.ams11.ip6.tiscali.net (2001:668:0:2::1:271)  15.889 ms  15.955 ms  14.971 ms
>  9  ge6-2-0.br0.ams3.nl.gbxs.net (2001:7f8:1::a500:9009:1)  15.511 ms  15.454 ms  15.972 ms
> 10  ams-ix2.ipv6.concepts.nl (2001:7f8:1::a501:2871:2)  15.437 ms  15.937 ms  15.837 ms
> 11  2001:838:0:14::2 (2001:838:0:14::2)  16.108 ms  15.294 ms  16.615 ms
> 12  2001:838:0:10::2 (2001:838:0:10::2)  21.508 ms  21.488 ms  17.428 ms
> 13  noc.sixxs.net (2001:838:1:1:210:dcff:fe20:7c7c)  21.508 ms  21.46 ms  18.441 ms


From VE (differnet IP, that 3257 was just experiemnt with my trick).

> root at idp:~# traceroute6 2001:838:1:1:210:dcff:fe20:7c7c
> traceroute to 2001:838:1:1:210:dcff:fe20:7c7c (2001:838:1:1:210:dcff:fe20:7c7c) from 2001:718:1:e::23:3248, 30 hops max, 16 byte packets
>  1  2001:718:1:e::23:3254 (2001:718:1:e::23:3254)  0.045 ms  0.015 ms  0.011 ms
>  2  2001:718:0:607::1 (2001:718:0:607::1)  1.105 ms  0.837 ms  1.381 ms
>  3  2001:718:0:607::2 (2001:718:0:607::2)  0.663 ms  0.44 ms  0.373 ms
>  4  ipv6-ge-2-1-0.prg11.ip.tiscali.net (2001:7f8:14::3:1)  0.566 ms  0.529 ms  0.529 ms
>  5  so-5-1-0.fra40.ip6.tiscali.net (2001:668:0:2::1:291)  8.551 ms  8.493 ms  8.499 ms
>  6  so-4-1-0.dus11.ip6.tiscali.net (2001:668:0:2::1:402)  11.302 ms  11.26 ms  11.256 ms
>  7  so-0-0-0.ams22.ip6.tiscali.net (2001:668:0:2::1:122)  15.086 ms  15.044 ms  15.039 ms
>  8  pos-7-5-0.ams11.ip6.tiscali.net (2001:668:0:2::630)  14.943 ms  14.945 ms  15.464 ms
>  9  ge6-2-0.br0.ams3.nl.gbxs.net (2001:7f8:1::a500:9009:1)  15.65 ms  15.52 ms  16.392 ms
> 10  ams-ix2.ipv6.concepts.nl (2001:7f8:1::a501:2871:2)  17.111 ms  15.812 ms  15.879 ms
> 11  2001:838:0:14::2 (2001:838:0:14::2)  16.031 ms  15.915 ms  15.91 ms
> 12  2001:838:0:10::2 (2001:838:0:10::2)  17.83 ms  18.28 ms  17.903 ms
> 13  noc.sixxs.net (2001:838:1:1:210:dcff:fe20:7c7c)  17.661 ms  18.263 ms  17.993 ms

Could you please try traceroute at 2001:718:1:e::23:3254? Path seams to
be different from yours. But I'm not sure if that could indicate
something bad in your IPv6 network setup. I'm not able to reach machines
which are in our own network so it looks like something more
fundamental. For IPv4 I will say that arp is not working but ...



-- 
-----------------------
Jan Tomasek aka Semik
http://www.tomasek.cz/

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