On Sun, 2005-01-23 at 22:51 -0800, David Brownell wrote: > I'm seeing a problem with TCP as accessed through KMail (SuSE 9.2, x86_64). > But oddly enough, only for sending mail, not reading it; and not through > other (reading) applications... it's a regression with respect to rc1 and > earlier kernels. Basically, it can only send REALLY TINY emails... > > What ethereal shows me is roughly: > > - SMTP connect, initial handshake, ok (ACKed later) > - Send two 1500 byte Ethernet packets > - Each gets an ICMP destination unreachable, frag needed, next hop MTU 1492 > - ... all retransmits are 1500 bytes not 1492, triggering ICMPs ... > > Naturally the connection goes nowhere.
Is there a firewall on this machine? And if so, do you allow inbound icmp? -- /Martin
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