Re: ip_conntrack growing indefinitely

[fd4 <fd4@itsec4u.de>]

> For now it has been patched setting ip_conntrack_max to 65536 but 
> connections still grow indefinitely (seems NAT never drops old
> connections). Any idea of the reasons? Could be related with the kernel
> version (2 years old) we're running?

I've a similar phenomen using kernel 2.6.18-4-vserver-686 :
conntrack -L|wc -l
3340
nearly all started at a similar time from two ports to random

example iptstate:
Source Destination   Proto  State       TTL
1.2.3.4:42573 1.2.3.4:842 tcp ESTABLISHED 10:44:43
1.2.3.4:42574 1.2.3.4:1501 tcp ESTABLISHED 10:43:51
1.2.3.4:42573 1.2.3.4:1392 tcp ESTABLISHED 10:43:20

well :- on my wish list now something like that:
conntrack -D -s 1.2.3.4 -d 1.2.3.4 -p tcp --orig-port-src 42573 --orig-port-dst 
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