From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Thu, 06 Dec 2007 18:48:31 +0100
From: tetzlav <tetzlav@leipzig.freifunk.net>
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Subject: Re: [B.A.T.M.A.N.] strange batman aborting
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To: The list for a Better Approach To Mobile Ad-hoc Networking <b.a.t.m.a.n@open-mesh.net>

Jan Hetges schrieb:
> Only unnormal in the log:
>  user.warn kernel: nf_conntrack: table full, dropping packet.
> any ideas?

I've had the same Problem (independent from batmand) on some kamikaze-boxes.
You can try to enlarge the max-memory for conntrack (default is 2048):

> root@MB-1-WDS:~$ sysctl net.ipv4.netfilter.ip_conntrack_max
> net.ipv4.netfilter.ip_conntrack_max = 2048
> root@MB-1-WDS:~$ sysctl -w net.ipv4.netfilter.ip_conntrack_max=8192
> net.ipv4.netfilter.ip_conntrack_max = 8192
> root@MB-1-WDS:~$ sysctl net.ipv4.netfilter.ip_conntrack_max       
> net.ipv4.netfilter.ip_conntrack_max = 8192

append something like this to /etc/sysctl.conf
net.ipv4.netfilter.ip_conntrack_max=8192


Regards
tetzlav