Re: Problem about NAT and IP_CONNTRACK

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Set the connection tracking limit at /proc/sys/net/ipv4/ip_conntrack_max:

Example: echo '100000' >> /proc/sys/net/ipv4/ip_conntrack_max

>   HI!
>
>   I use iptables to do NAT in the NIC of my Univ.
>
>   About 2000 computers connect to intranet and need to do NAT.
>
>   I use a HP server 128M RAM, P3 1.2G CPU(Only 1,Not SMP), RedHat Linux
> 9.0
> with iptables 1.2.8
>
>   I setup iptables only use NAT and ip_conntrack (and ftp surport).
>
>   When iptables runing, anything seems well done.
>
>   But soon, message post:
>
>   "ip_tables: Neighbor Table Overflow!"  and "ip_conntrack: table full,
> dropping"
>
>   My question is:
>
>   1. How many conntracks does ip_conntrack surport dur to my server?  How
> to increase it?
>
>   2. I have checked the source code of ip_tables, but can't find the
> routine who post the first message. Please tell me what cause it and how
> to
> solve it.
>
>    Tanks a lot!
>
> _________________________________________________________________
> ÓëÁª»úµÄÅóÓѽøÐн»Á÷£¬ÇëʹÓà MSN Messenger:  http://messenger.msn.com/cn
>
>
>


Thanks,
Josh Berry, CTO
LinkNet-Solutions
469-831-8543
josh.berry@xxxxxxxxxxxxxxxxxxxxx



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