How to write simple SMPP server

Question

I want to write a simple SMPP Server that basically forwards traffic to another SMPP server (C#, PHP). What are the things I need to know? How do I proceed?

Answer 1

With regards to Goran's comment, one possible solution would be a simple tcp proxy such as simpleproxy.

From the Ubuntu package description:

simpleproxy acts as a simple TCP proxy. It opens a listening socket on the local machine and forwards any connection to a remote host. It can be run as a daemon or through inetd.