On Mar 15, 2005, at 15:09, Claude Morin wrote:
> Not to keep beating the same drum (as in some of my other posts) but
> this may be an MTU issue.
It was an MTU issue. After putting a packet sniffer on a Windows host,
I saw that the syn and ack packets to and from the FreeBSD server were
getting through, but then everything else was lost.
After changing the max MTU on a Windows host to 576, everything began
working again. I would have thought that PMTU discovery would take care
of MTU problems.
As for the sporadic outages--I'm guessing that one or more routers we
connect through (ADSL line with forced periodic logouts) is not
configured properly, so that when we get a bum router, the Windows
hosts gag. As to why the Macs were unaffected, I guess one must put it
down to Microsoft's stack being deficient/less robust as compared to
Thanks to everybody for their thoughtful suggestions, I really
appreciated the help.