Red Hat Bugzilla – Bug 116221
TCP packet problem with kernel 2.6.2-1.87
Last modified: 2007-11-30 17:10:36 EST
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Description of problem:
I am having network issues with the kernel version above and several
I have an Athlon 1800+ with a K7S5a (sis735) and I am using the built
in NIC sis900.
ICMP and UDP traffic to my LAN is fine, but TCP packets aren't.
Subsequently every connection looks like the host is down.
Is this a known problem or is it unique? It's happen with several of
the newer kernel development versions.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. have my system
2. isntall FC1
3. install listed kernel version
4. TCP packets go heywire.
Actual Results: TCP packets don't go out.
Expected Results: A successful connection.
Nothing is shown when trying to initiate a TCP connection.
either run command as root;
echo 0 > /proc/sys/net/ipv4/tcp_ecn
or add to file /etc/sysctl.conf and reboot;
# Disable ECN
net.ipv4.tcp_ecn = 0
Re-open if disabling ECN didnt fix this