I have your run of the mill 10.1.1.0 network with Linux 2.0.36
performing IP Masquerading from the eth0 to the ppp0.
The Linux firewall is eth0: 10.1.1.1
I have a telnet client running on 10.1.1.20
I want to telnet into the 10.1.1.20 box from outside my network on
some arbitrary port, say 9999. So "telnet 22.214.171.124:9999" and have the
firewall translate all port 9999 packets and forward them to 10.1.1.20
on some port (I guess 9999 would work) What ipfwadm commands do I
need to run to do this?