Hi,

I have IPv6 "mostly" set up, but I am having trouble reaching a couple
of sites, like www.kame.net (*where's my dancing turtle!!*).

My setup:

FreeBSD 4.0-20000522-STABLE

6to4 tunnelling via the stf interface:

        stf0: flags=8041<UP,RUNNING,MULTICAST> mtu 1280
                inet6 fe80::2c0:95ff:fef0:3e20%stf0 prefixlen 64 scopeid 0xb 
                inet6 2002:180c:a043::1 prefixlen 16 

Outgoing packets travel by default via Freenet6, with the gif interface
using the same address as the stf interface:

        gif0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1280
                inet6 fe80:7::2c0:95ff:fef0:3e20  prefixlen 64 
                inet6 2002:180c:a043::1 --> 3ffe:b00:c18:1fff::3ac  prefixlen 127 
                physical address inet 24.12.160.67 --> 206.123.31.102

Pinging something on 2002:: works:

        PING6(56=40+8+8 bytes) 2002:180c:a043::1 --> 2002:836b:4179::836b:4179
        16 bytes from 2002:836b:4179::836b:4179, icmp_seq=0 hlim=128 time=27.267 ms
        16 bytes from 2002:836b:4179::836b:4179, icmp_seq=1 hlim=128 time=22.578 ms

Pinging something on 3ffe:: in Japan (tortoise.jp.freebsd.org) works
(more or less):

        PING6(56=40+8+8 bytes) 2002:180c:a043::1 --> 3ffe:505:2008:1:2a0:24ff:fe57:e561
        16 bytes from 3ffe:505:2008:1:2a0:24ff:fe57:e561, icmp_seq=0 hlim=58 
time=821.826 ms
        16 bytes from 3ffe:505:2008:1:2a0:24ff:fe57:e561, icmp_seq=1 hlim=58 
time=1070.19 ms
        16 bytes from 3ffe:505:2008:1:2a0:24ff:fe57:e561, icmp_seq=4 hlim=58 
time=1265.39 ms

But pinging www.kame.net does not work:

        PING6(56=40+8+8 bytes) 2002:180c:a043::1 --> 
3ffe:501:4819:2000:5054:ff:fedc:50d2
        [yawn...]

The traceroute to www.kame.net might be more informative:

        traceroute to kame212.kame.net (3ffe:501:4819:2000:5054:ff:fedc:50d2), 30 hops 
max, 12 byte packets
         1  3ffe:b00:c18:1fff::3ac  399.275 ms  360.014 ms
         2  3ffe:b00:c18:1:290:27ff:fe17:fc0f  365.612 ms  365.586 ms
         3  3ffe:b00:c18::13  410.858 ms  437.977 ms
         4  3ffe:1810:0:ffff::14  433.558 ms  469.157 ms
         5  3ffe:1810:ffff::13  449.495 ms  446.731 ms
         6  3ffe:1800:0:3:290:27ff:fe14:cd9c  464.434 ms  417.067 ms
         7  3ffe:1801:ffff::2  473.318 ms  433.492 ms
         8  * *
         9  * *
        10  * *
        11  * *
        12  * *
        13  * *

As I see it, there are two possible explanations:

        2) Somehow, my packets are being filtered because they come
        from "the wrong place."  That seems unlikely, as the packets to
        tortoise.jp.freebsd.org take largely the same route.

        1) KAME does not have a route to a 6to4 relay.

Thoughts, anyone?

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