Schoenwaelder Oliver wrote:
Hi,
I don't know how to solve the problem on my own: we have a linux firewall (SuSE 7.3, kernel 2.4.16, iptables 1.2.2-60, FreeS/WAN 1.94_0.9.2-41) which is running for more than a year now. Since August, 12th with have lots of messages like
Aug 25 10:52:25 batschkapp-ext kernel: NET: 468 messages suppressed. Aug 25 10:52:25 batschkapp-ext kernel: Neighbour table overflow.
in messages file. What is strange is that arp tables contains exactly 1023 entries, most of them incomplete with IP addresses of our local subnet which are not used and not reachable. Sometimes arp table is correct with about 70 entries, but only for a couple of seconds.
you can 'fix' it by spending more ram for the arp table: echo 1024 > /proc/sys/net/ipv4/neigh/default/gc_thresh1 echo 2048 > /proc/sys/net/ipv4/neigh/default/gc_thresh2 echo 4096 > /proc/sys/net/ipv4/neigh/default/gc_thresh3 Dunno if it's really related to blaster, but we had similar problems. HTH