Need to grab local network packets

[billjbs]

I am working with some older programs that communicate between themselves over a local network. I know how the contents of the packets are formatted and I want to monitor the packets for certain information. I have been unable to find info on how to connect and listen to the network. All of the packets I believe are sent as a global style since the app has its own address that is set in the program. Any suggestions to point me towards connecting up and listening would be appreciated.

[mcalderaro]

What protocol are we talking about here?

[billjbs]

Any protocol but TCPIP

[Raggart]

Did you try a sniffer like NetXRay, with which you can specify which protocols you would like to monitor? I recommend trying one, they're good.

Raggart