I tried using the portscan feature on the network-admin tool (Listed as Network Tools in the Applications menu) with gnome. I'm not sure what package it's part of.
When I click on the Port Scan tab and put in the IP of a local computer and click "scan" It disappears and I get the error message:
The Application "gnome-nettool" has quit unexpectedly.
Steps to Reproduce:
1. Start Gnome Network tools in gnome 2.8
2. Click Port Scan tab
3. Enter IP address and click scan
your 'emerge info' (always provide this, read the bugreport form!) ?
& crash => get a backtrace with debug info