Re: Problem with bridge+iptables+ulog

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On Wed, 12 Mar 2003 21:16:31 +0530, 
"hare ram" <hareram@xxxxxxxxxx> wrote in message 
<07cc01c2e8ae$8d8ee160$13fcc5cb@xxxxxxxxx>:

> From: "Arnt Karlsen" <arnt@xxxxxxx>
> To: <netfilter@xxxxxxxxxxxxxxxxxxx>
> Sent: Wednesday, March 12, 2003 6:20 PM
> Subject: Re: Problem with bridge+iptables+ulog
> 
> 
> > On Wed, 12 Mar 2003 15:55:34 +0530, 
> > "hare ram" <hareram@xxxxxxxxxx> wrote in message 
> > <078601c2e886$039a49e0$13fcc5cb@xxxxxxxxx>:
> > 
> > > Hi all
> > > 
> > > some one can help i have the following setup
> > > 
> > > x.x.x.1/24            x.x.x.2/24
> > >    +----------+                     +------+
> > >    | Router A |---------+ +---------| PC B |
> > >    +----------+         | |         +------+
> > >                         | |
> > >                     eth0| | eth1
> > >                       +-----+
> > >                       | qos | (br0 =3D x.x.x.3/24)
> > >                       +-----+
> > > 
> > > 
> > > 
> > > Router A is connected to internet
> > > QOS box running with bridge
> > > PC B is my LAPTOP
> > > 
> > > iam try to make the ULOG usig the following command
> > > 
> > > 
> > > $IPTABLES -I INPUT -i eth1 -j ULOG --ulog-nlgroup 1 --ulog-cprange
> > >    --ulog-qthreshold 50 --ulog-prefix "EXT_IN"
> > 
> > ..does eth1 have an ip address?  Why does br0 have an ip address 
> > at all?  IMNTHO, it does not need it, but then I can generate logs 
> > from: 'tcpdump -i $interface | grep -v $whatever-I-dont-need \
> >  | grep $what-I-want.etc.iterate.greps.as.needed >> $logfile '
> >  
> Hi
> 
> thanks, BR0 have IP becoz of monitoring purpose
> 
> i would like to use IPTABLES to monitor the packets 
> but i could not able to do so, looking for the same help.

..ok, I monitor etc from a third nic inside my firewall, and left 
my bridge and its interfaces, ip-less, outside my firewall.

-- 
..med vennlig hilsen = with Kind Regards from Arnt... ;-)
...with a number of polar bear hunters in his ancestry...
  Scenarios always come in sets of three: 
  best case, worst case, and just in case.



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