Something along those lines should work. The only issue I can see is that, when making a request, specifying the local IP makes sense but specifying the port doesn't. I would try it with a value of simply '1.2.3.4'. Assuming, of course, that 1.2.3.4 is really an IP on your box which is visible by the server you want to reach.

-sauoq
"My two cents aren't worth a dime.";