kloch at hotnic.net
Wed Feb 15 00:08:14 CET 2006
Iljitsch van Beijnum wrote:
> Hi ipv6-ops,
> I'm seeing a 6to4 problem that I haven't seen before... Maybe one of
> you can explain this. Today, http://www.osx86project.org/ announced
> that they are IPv6-capable. But it didn't work for me: with a source
> address in 2001:1af8::/32 with UUNET NL as a main transit network I was
> unable to reach the site. Turns out they use a 6to4 address (based on
> the IPv4 address 188.8.131.52): 2002:42EB:B46B::2.
It seems that there are a couple different things going on here...
First, I can ping and traceroute to it fine:
traceroute6 to www.osx86project.org (2002:42eb:b46b::2) from
2001:4810:0:100::1, 64 hops max, 12 byte packets
1 iad0-stf.hotnic.net 0.373 ms 0.284 ms 0.213 ms
2 2002:42eb:b46b::2 98.401 ms * 98.553 ms
PING6(56=40+8+8 bytes) 2001:4810:0:100::1 --> 2002:42eb:b46b::2
16 bytes from 2002:42eb:b46b::2, icmp_seq=0 hlim=123 time=98.322 ms
16 bytes from 2002:42eb:b46b::2, icmp_seq=1 hlim=123 time=97.887 ms
16 bytes from 2002:42eb:b46b::2, icmp_seq=2 hlim=123 time=98.248 ms
And I can connect to it with telnet on port 80, but:
Connected to www.osx86project.org.
Escape character is '^]'.
GET / HTTP/1.1
[Our DNS server shows that [No Host] does not exist]
Connection closed by foreign host.
It doesn't give me a chance to enter a Host: line and disconnects
after the first input line. The "[Our DNS server..." message is an odd
response to an http query...
Firefox seems to fallback to ivp4 for each url retrieved on the page,
even images which takes a long time to load.
So it seems that even with a working IPv6 path in both directions
there is an application level problem.
> Protocol [ip]: ipv6
> Target IPv6 address: www.osx86project.org
> Source address: 2001:1AF8:6:0:204:27FF:FEFE:249F
> 1 * * *
> 2 * *
Can that router get to any 6to4 addresses?
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