Free Network Monitor

Question

I am having trouble integrating two products, one of which is mine and they appear not to be talking. So I want to make sure they are communicating correctly. I had a look around for network monitor and found TCP Spy. This works but only shows 1 side of the conversation at a time (it has to run locally) I would ideally like to see both sides at the same time - but you can't run two copies of TCP Spy.

I've hit Sourceforge, but nothing seems to jump out - I'm a Windows developer, I don't have perl installed.

I've found a couple of others which are cripple-ware and totally useless, so I was wondering what do the SO guys use for watching the TCP conversation?

BTW - the 'not-written-here' product is not a browser.

Answer 1

I'm not sure if it does everything you want, but have you seen WireShark and the Microsoft Network Monitor?

Answer 2

Wireshark (previously Ethereal)

Wireshark is an award-winning network protocol analyzer developed by an international team of networking experts.

Answer 3

Take a look at Tcpdump It is not a full fledged GUI network analyzer (not at all) but it is usable in scripts. Since I am more a Linux person, I use it with Bash and Python, but you should be able to call it from powershell.

Answer 4

I use wireshark. Very good and free.