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From: centos-bounces@centos.org [mailto:centos-bounces@centos.org] On Behalf Of chloe K Sent: Thursday, November 27, 2008 9:10 PM To: CentOS mailing list Subject: Re: [CentOS] Neighbour table overflow
what is your netmask?
eth0 = 255.255.240.0 eth1 = 255.255.255.0 lo = 255.0.0.0
These don't look right except for eth1. I have made no changes to these in about 4 years.
Thanks
Thomas Dukes tdukes@sc.rr.com wrote:
Just started getting this. I tried the following by adding it to my etc/sysctl.conf:
net.ipv4.neigh.default.gc_thresh1 = 4096 net.ipv4.neigh.default.gc_thresh2 = 8192 net.ipv4.neigh.default.gc_thresh3 = 8192 net.ipv4.neigh.default.base_reachable_time = 86400 net.ipv4.neigh.default.gc_stale_time = 86400
That pretty much locked things up.
Then I tried another googled solution:
echo 256 > /proc/sys/net/ipv4/neigh/default/gc_thresh1
echo 512 > /proc/sys/net/ipv4/neigh/default/gc_thresh2
echo 1024 > /proc/sys/net/ipv4/neigh/default/gc_thresh3
And adding it also to etc/sysctl.conf:
net.ipv4.neigh.default.gc_thresh1 = 256 net.ipv4.neigh.default.gc_thresh2 = 512 net.ipv4.neigh.default.gc_thresh3 = 1024
Still not working.
Any ideas?
TIA
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