You can only forward to ports on the same host that is running ipchains.
Otherwise there are lots of port-forwarders that essentially forward the
port to a port on another host. I use one called 'simpleproxy'.
e.g.
ipchains -A input -s 208.230.244.0/255.255.255.0 -d 0.0.0.0/0.0.0.0 80:80
-p 6 -j REDIRECT 22
redirects all traffic from 208.230.244.x with any destination port 80 to
port 22. I am not familiar w/ dialpad so I can't tell if this helps.
(something tells me it's not.) This is, however, a fairly decent way to
get around firewalls that restrict outgoing packets to well-known ports or
a subset thereof.
--
For every credibility gap, there is a gullibility fill.
-- R. Clopton
On Mon, 10 Jul 2000, Gary Tsai wrote:
> Is there anyway to do port forwarding w/ipchains? i've read you must use
> ipmasqadm, but i was hoping you could forward ports via ip masq. i'm trying
> to run dialpad from inside my firewall-protected intranet.
>
> thanks,
> GT
>
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