On Monday 16 February 2004 5:29 pm, Oriol Magrané wrote:
> Hello!!
> I have a linux box (with ip 192.168.4.172) connected to the Internet
> through an ADSL router (with ip 192.168.4.10). Now I'd like to do some port
> forwarding on the box itself, so that outgoing connections to port 80 of
> host 212.59.199.45 goes to port 110 of host 212.59.199.75.
>
> So I do:
>
> iptables -t nat -A PREROUTING -p tcp -d 212.59.199.45 --dport 80 -j
> DNAT --to 212.59.199.75:110
>
> Which it seems the logical thing to do.
> But when I telnet 212.59.199.45 80 the kernel continues to send packets
> to port 80 of 212.59.199.45 ignoring my wishes and commands. What am I
> doing wrong?
1. Where are you testing the telnet from? The machine with the netfilter
rules on it (won't work) or a machine on your LAN which is routed through the
netfilter machine (should work)?
2. Do you have a suitable FORWARD rule to allow the packets to get to
212.59.199.45 TCP port 110?
Regards,
Antony.
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