Re: firewall problem

Linux Advanced Routing and Traffic Control

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well. i ment the ip i got from my isp is aaa.aaa.aaa.aaa, not the
local net one, sorry

i do not use MASQ. as this did not function well before, and the faq
said to preffer SNAT

i have 2 outgoing internet  connections, one via pptp (ppp0), one via
router (eth1)
i also got a local network - eth0

eth1 is 10.0.0.2 connectod to a router which is 10.0.0.1
ppp0 is aaa.aaa.aaa.aaa ptp to ccc.ccc.ccc.ccc
eth0 is 192.168.0.254/24

thanks
erez.

On 3/14/06, Ethy H. Brito <ethy.brito@xxxxxxxxxxxx> wrote:
> On Tue, 14 Mar 2006 12:18:57 +0200
> "Erez D" <erez0001@xxxxxxxxx> wrote:
>
> > snat not working
>
> Yes it is. Not the way you want, but it is!!
>
> >
> > my local ip is aaa.aaa.aaa.aaa
> > asterisk sitting on the internet at ip bbb.bbb.bbb.bbb
> > my firewall's internal ip is 192.168.0.254
>
> >
> > i did snat:
> >
> > iptables -t nat -A POSTROUTING -o ppp0 -j SNAT --to aaa.aaa.aaa
>
>
> You must SNAT wit the EXTERNAL IP of you router not the internal one to achieve
> the effect you want.
>
> And since you are unsing ppp, I advise you to use MASQUERADE instead SNAT.
>
> Regards
>
> --
>
> Ethy H. Brito         /"\
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