@_ThEcRoW:
I am pretty sure TermiteTCP requires KS2.0 as the demo of it on Aminet does.
As far as I know there are no TCP/IP stacks which works on 1.3, except the oldest version of the never publically released AS225. Unfortunately not much software works with AS225 as it is not a bsdsocket.library compatible stack.
/Patrik