Messages in this thread |  | | Date | Tue, 30 Nov 2004 07:43:38 +0100 | | From | Willy Tarreau <> | | Subject | Re: 2.6.9 tcp problems |
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It is possible that the autoneg code has changed between 2.4 and 2.6 for the interface connected to the current firewall, and that you lose packets because of a duplex mismatch. Please check the negociation with ethtool on your system, and do so on the other firewall.
Regards, willy
On Mon, Nov 29, 2004 at 01:03:34PM -0500, kernel wrote: > I've run into a problem with 2.6.(8.1,9) after installing a secondary > firewall. When I try to pull data through the original firewall (mail, > http, ssh), it stops after approx. 260k. Running ethereal tells me "A > segment before the frame was lost" followed by a bunch of "This is a > TCP duplicate ack" when using ssh. All 2.4.x machines and windows > clients work fine. I built 2.4.28 and it works fine from my machine. I > also fiddled with tcp_ecn and that didn't fix it either. I don't have > any problems communicating to "local" machines. I've attached the > tcpdump output from an scp attempt. NIC is a 3Com Corporation 3c905B. > > Thanks ! > walt >
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