My McAfee personal firewall program occasionally reports it has blocked an unsolicited connection attempt. The average is less than one per day. This come looking for a variety of ports: 1705, 1833, 2003, 3348, 3349, 3350, ... Looking up the owners of the ip addresses tells me little. The very brief descriptions McAfee gives also tell me little. Google searches for names such as slingshot, udpradio, Chevin Services, Pangolin Laser, FINDVIATV, and TransScout are unproductive. What I really wonder is how these apparent probes get past my Linksys WRT54G router. I have done nothing to open any ports. Why doesn't the router prevent these attempts from reaching the pc? Is there some security setting in the router that I am overlooking? How can I find out more about these connection attempts? I probably know just enough to get into trouble.