Forward packets from one system to another

Hi All,

I have two systems and I would like all packets that come to system 1 to
be forwarded to system 2.

So, let say the system 2 is running web browser on 80. I would like to
be able to say:

curl http://system2:8080

and get the page running on system2 on 80.

So I tried the following:

iptables --append PREROUTING -t nat --protocol tcp --dport 8080 --jump
DNAT --to-destination system2:80
iptables --append FORWARD --protocol tcp --dport 8080 --jump ACCEPT

but it did not work.

Any idea on what am I doing wrong?

Thanks.

Andy

andy wrote:

> Hi All,
>
> I have two systems and I would like all packets that come to system 1 to
> be forwarded to system 2.
>
> So, let say the system 2 is running web browser on 80. I would like to
> be able to say:
>
> curl http://system2:8080
>
> and get the page running on system2 on 80.
>
> So I tried the following:
>
> iptables --append PREROUTING -t nat --protocol tcp --dport 8080 --jump
> DNAT --to-destination system2:80
> iptables --append FORWARD --protocol tcp --dport 8080 --jump ACCEPT
>
> but it did not work.
>
> Any idea on what am I doing wrong?
>
> Thanks.
>
> Andy
Hello,

the rule seems to be OK. Try "iptables -F -t nat" to make sure that no other
rule applies before or
iptables -I PREROUTING 1 -t nat --protocol tcp --dport 8080 --jump DNAT
--to-destination system2:80

With kind regards, Alex