Red Hat Bugzilla – Bug 129307
forcedeth ethernet driver is not passing non-local packets after upgrade to 2.6.7-1.494.2.2
Last modified: 2015-01-04 17:08:28 EST
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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
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):
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
Actual Results: no packets getting back in from external site
Expected Results: packets getting back in from external site
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.