Re: cvs commit: src/sys/netinet tcp_syncache.c



Maxim Konovalov wrote:
On Thu, 24 Jan 2008, 13:52+0100, Andre Oppermann wrote:

Maxim Konovalov wrote:
[...]
I'm not generally opposed to security improvements that only affect edge
cases... but being unable to connect is not an edge case!
Fully agreed. I'll reopen the PR and follow up with the originator
to do some further analysis. All operating system he cites that were
unable to connect correctly send timestamps and do not stop after
the SYN phase. So there must be something else at play here. Have
you received or heart of any *other* reports that may be related to
the timestamp check?

I saw this with my adsl router. Happy to test patches.
Please provide a tcpdump of a connection that failed before. It'll
show the problem even though it doesn't cause an abort. Was the
problem you saw with communication through the adsl router, or when
you connected to the adsl router itself (configuration menu, etc)?

The latter. Turning rfc1323 off solved the problem.

It takes some time to obtain the dump -- I need to downgrade the
system.

That is not necessary. A tcpdump from current is fine.

--
Andre

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