Ben, > Date: Tue, 30 Jun 2009 19:03:32 +0100 > From: [email protected] >> Can the Linux router operate so that it simply sends >> datagrams to the client without involvement of PMTUD? > > I don't understand. I thought the problem was that some of the client's > *outgoing* packets were being dropped due to exceeding the MTU on the > WAN link and being non-fragmentable. You can fix that by lowering the > MTU between client and remote systems; either by PMTUD or by changing it > on the local link. Cancel my question above. It makes no sense. Last week the problem disappeared as mysteriously as it appeared a year or so back. Ie. the non-Linux client can again send messages by SMTP and files by FTP with no problems. Consistent with your comments above, ifconfig now reports MTU:1500. Presumeably set by the ISP dhcp server. So I should check that the non-Linux system really is setting the DF bit. Thanks, ... p. crawford _________________________________________________________________ New! Get to Messenger faster: Sign-in here now! http://go.microsoft.com/?linkid=9677407
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