Opensource network analyser software on a gateway?

[demonic]

Thanks for reading the thread, hopefully you can suggest something.

Im currently using ntop : http://www.ntop.org/ and looking at darkstat : http://freshmeat.net/projects/darkstat/

But Im really wanting something that just gives me history and realtime information on the IP's that connect to the gateway, which ports they use and bandwidth they have used or are using?

Can anyone suggest other packages?

Thanks