Ive got a WRT54G running Thibor 15c and I recently enabled my Norton AV Worm protection. For some reason when I start the PC and begin browsing NAV will report a Portscan attempt from 192.168.1.1, which is my router. Despite adding a in a rule to say allow everything from this IP. NAV then blocks this. This in itself isnt a problem I can turn that off but what I am concerned about is why my router is portscanning my PC. I have even tried enabling the block portscan within Thibors security page but the result is the same, several times a day it will report a portscan. The port it tries to scan can vary also but stays within a small range.