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Ping-Yu Hsieh wrote:
> Hi,
>
> I have a question about IP masquerade.
> If a packet coming from, say, IP1 to IP2, where IP2 is the ip address of the
> Linux server, is it possible to forward the packet to IP3, which is in the
> other subnet different to the one of IP2, through IP Masquerading or
> ipchains?
>
> Thank you.
>
> Peter
yes. it's called port forwarding and you need the ipmasqadm
program to make it happen. once you've got that. it's a
simple matter of (after setting up masquerading and
configuring your kernel to support port forwarding):
ipmasqadm portfw -f
ipmasqadm portfw -a -P tcp -L $extip $port -R $intip $port
where:
$extip is the external ip address of the masquerading host,
$port is the port for the service to be forwarded,
$intip is the ip address of the real, internal server.
raf
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