[plug] Any good network monitoring tools?

[David Campbell]

I need to locate a good network monitoring package which can log IP 
numbers and SMB addresses. I have been told that our sub-net is full and 
the network admins have an Excel spreadsheet full of possibly unused 
slots.

I am going to be away next week so I wanted to leave my machine powered up 
in Linux for some data collection. Hopefully I can find a nice bank of 16 
contiguous numbers I can uses.

Any tips/pointers much appreciated. Even just being able to locate 
currently used IP numbers would help.

David Campbell

PS:
This network is roughly 80% W95, 10% NT 4.0, 5% Netware, 5% other
Average ethernet load is approx 25% (ouch!), we ARE getting a switched hub 
soon.
=======================================================
campbell at torque.net

"There is no such thing as a bug in the Linux 2.1.x kernels
Consider it as a request from the enlightened for you to brush
up on your C programming and help improve the kernel."