WAN connection through a Linux machine

[Etzion Bar-Noy]

Oops - and now with reply-all...

Hi.
You should run both these commands (I will not disclose how you make it
apply after-reboot for now)

1. echo 1 > /proc/sys/net/ipv4/ip_forward
2. iptables -t nat -A POSTROUTING -o ppp0 -j MASQUERADE

Don't forget to set correct DNS on your host B

Ez

On Tue, Apr 20, 2010 at 8:29 AM, Dan Shimshoni <danshimsh at gmail.com> wrote:

> Hello,
> First, I don't know much about iptables.
>
> Second, I have a Linux machine ("A") with two nics, which is connected
> to the Internet via Bezeq ADSL router.
> This machines runs a pppoe connection to the intenet, so the
> connection is done via ppp0.
> On eth1 I have an inner IP address which I set manually (192.168.0.10).
>
> I have a second Linux machine ("B"), nearby. This machine is connected
> directly
> to machine "A" via ethernet cable. On eth0 I have an inner IP address which
> I set manually (192.168.0.11). So I can ping from 192.168.0.11 to
> 192.168.0.10.
>
> Sometimes I want to connect from machine "B" to the Internet via machine
> "A".
> I suppose this is possible by setting some iptables rule on machine "A",
> and
> setting it to work in forwarding mode. Could this done by setting one
> iptables rule
> on machine "A"?
> What is the proper rule to achieve it?
>
> DS
>
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