Hi,

Checkout the iplimit patch in netfilter CVS.

$ Author: Gerd Knorr <[EMAIL PROTECTED]>
$ Status: ItWorksForMe[tm]
$ 
$ This adds CONFIG_IP_NF_MATCH_IPLIMIT match allows you to restrict the
$ number of parallel TCP connections to a server per client IP address
$ (or address block).
$ 
$ Examples:
$ 
$ # allow 2 telnet connections per client host
$ iptables -p tcp --syn --dport 23 -m iplimit --iplimit-above 2 -j REJECT
$ 
$ # you can also match the other way around:
$ iptables -p tcp --syn --dport 23 -m iplimit ! --iplimit-above 2 -j ACCEPT
$ 
$ # limit the nr of parallel http requests to 16 per class C sized
$ # network (24 bit netmask)
$ iptables -p tcp --syn --dport 80 -m iplimit --iplimit-above 16          \
$         --iplimit-mask 24 -j REJECT
$ 

cheers,
Lennert


On Mon, Oct 29, 2001 at 08:58:56PM -0200, Carlos T. Latsch Cherem wrote:

> Hi,
> 
> I have a question:
> 
> Is possible to limit the number of  TCP connections trought the bridge?
> E.g.:
> 
> iptables -A FORWARD -p tcp -s xxx.xxx.xxx.xxx -m state --state STABLISHED -m
> limit --limit 2 -j ACCEPT
> iptables -A FORWARD -p tcp -s xxx.xxx.xxx.xxx -m state --state STABLISHED -j
> DROP
> 
> Best regards,
> 
> Carlos Cherem
> [EMAIL PROTECTED]
> 
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