convert the ip packet to and from RS-232 packet

[Li Han]

Hi, I need to use radio to connect two local ip network, each local
network has a server computer which connects to a radio with RS-232
interface.  I need to write a program to convert the local ip packet
into RS-232 packet, so the radio can send packetes to the remote
radio. I don't want to reinvent the wheel, is there anyone could give
me some suggestions?
Thank you!
Han