Since you've asked a general question, I'll give you a general answer.

I'd say, rather than asking for a complete solution, you could build your solution from the blocks you already have. So, make a script that does the tcp/ip bit, then once that's working, do the com port stuff. If you have tcp servers and serial loggers to pick over, that should be all you need.

Once you get started and you have more questions, post 'em.

--Pileofrogs