Is there a freeware app which will intercept outgoing connections on a
specified port and redirect it to another port on the same host?
Current situation:
Computer A=>1723 --------------------- 1723(on router) => 1723 on Computer
B
Desired situation:
Computer A=>1723 ~=>1724 -----------------1724(on router) => 1723 on
Computer B
Do you need to map a specific TCP or UDP port on your machine to another
port on another machine? Do you want to limit access to a server on your
machine based on the IP address of an incoming connection request? If
these sound interesting to you, then AnalogX PortMapper is just what the
doctor ordered (or programmer, in this case). AnalogX PortMapper allows
you to map and port on your computer to any IP address and port on
another machine; not only that, you can limit access based on the
incoming IP address! So, say for instance that you are using a proxy,
and would like to be able to telnet from other machines; simple, just
run PortMapper, and tell it to forward any request to port 23 (telnet)
to the machine you want to access. Now, any time you telnet to your
proxy server machine, it automatically forwards the data to the other
machine! Or, do you run a webserver, and only want people from IP
addresses you specify to connect? No problem, PortMapper can do that as
well! Overall, a great standalone program, or an excellent addition to a
proxy or server!
http://www.analogx.com/contents/download/network/pmapper.htm