On Thu, Mar 05, 2009 at 07:02:53PM -0500, Donald Pearson wrote: [...] > I removed the Compression line from the hosts files, and went back to the > working UDP configuration that gave me 2MB/sec. > > However the problem did not go away. I say I think there is an IP/UDP frame > size issue because the firewall software I use, SoftPerfect Personal > Firewall, is reporting this error in it's logs when I try to do something > like a file transfer. > > I am able to ping between hosts with packet sizes up to 1417 bytes. > > I did some testing with setting the PMTU value and setting PMTUDiscover = > no, however it had no affect.
It seems there is a problem if both PMTUDiscovery and Compression is used.
Another problem is that both sides must have PMTUDiscovery = no, otherwise it
will still be enabled anyway. Michael Tokarev has also seen this problem. I'll
have a better look at the code and I'll try to reproduce it myself, and see if
I can fix it.
In the mean time, the workaround is to explicitly disable PMTUDiscovery and
Compression.
--
Met vriendelijke groet / with kind regards,
Guus Sliepen <[email protected]>
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