On Tue, 12 Mar 2002, Michael Richardson wrote:
> >>>>> "Pekka" == Pekka Savola <pekkas@xxxxxxxxxx> writes:
> Pekka> There appears to be some weird problem with TCP over IPv6 with
> 2.4.18.
> Pekka> At least with RHL72 kernel (2.4.9-xx), this does not happen.
>
> Pekka> The topology is such:
>
> Pekka> 2001:708:10:10:250:4ff:fe6a:db55 - Linux client
> Pekka> 2001:708:10:f::c1a6:45 - FreeBSD 4.5 TCP relay (using IPv6-to-IPv4
> relay)
>
> Pekka> The test is done with basically 'lynx
> [http://[2001:708:10:f::c1a6:45]',
> Pekka> the same also happens if telnetting to port 80 and issuing 'GET /
> Pekka> HTTP/1.0'
>
> Pekka> The problem is that FreeBSD never seems to be able to send the
> data it
> Pekka> receives from IPv4 to the Linux client: netstat -an shows the data
> is kept
> Pekka> in SendQ of the connection, which is CLOSING state. Linux client
> never
> Pekka> sees the data.
>
> You mean you are hitting the FreeBSD box directly, so what has 6to4 got to
> do with it?
Well, to be exact, "IPv6-to-IPv4" not "6to4" (RFC3056).
Yes, I'm connecting to the FreeBSD box directly. I said the above just
for completeness, as it _might_ also be a bug in faithd/faith.
I guess until some ideas surface, I'll forward this to KAME lists, and see
if they have any ideas.
--
Pekka Savola "Tell me of difficulties surmounted,
Netcore Oy not those you stumble over and fall"
Systems. Networks. Security. -- Robert Jordan: A Crown of Swords
|