From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7) Gecko/20040803 Firefox/0.9.3 Description of problem: After an upgrade from kernel-2.6.6-1.435.2.3 to kernel-2.6.7-1.494.2.2 on an Asus A7N8X-VM nforce2 motherboard which has an onboard ethernet controller, non-local packets are no longer being accepted by the forcedeth driver. It _looks_ like the netmask is no longer being set correctly, but it is reported as the expected 255.255.255.0 by ifconfig and there are no signs of problems in the initialization messages. ntp packets are getting through from the outside. Version-Release number of selected component (if applicable): kernel-2.6.7-1.494.2.2 How reproducible: Always Steps to Reproduce: 1.boot with kernel-2.6.7-1.494.2.2 2.attempt to access, eg. http site external to local network 3. Actual Results: no packets getting back in from external site Expected Results: packets getting back in from external site Additional info: rebooting into 2.6.6-1.435.2.3 with an identical configuration restores sane behaviour.
This is very odd, I have just added an 8139too card to the mobo and tried using this as eth0 rather than the onboard ethernet. With 2.6.7-1.494.2.2 no non-local packets are coming back in, with 2.6.6-1.435.2.3 all is well (same config for both kernels)......
Sorry guys, I should have looked at fedora list more carefully, this is the window scaling problems discussed recently in the list: sysctl -w net.ipv4.tcp_default_win_scale=0 fixes the problem. Strangely none of our other FC2 machines on the same network displayed problems with packets getting in when upgraded, only the Nforce2 one.
mass update for old bugs: Is this still a problem in the 2.6.9 based kernel update ?
Fedora Core 2 has now reached end of life, and no further updates will be provided by Red Hat. The Fedora legacy project will be producing further kernel updates for security problems only. If this bug has not been fixed in the latest Fedora Core 2 update kernel, please try to reproduce it under Fedora Core 3, and reopen if necessary, changing the product version accordingly. Thank you.