I am using the latest version of ZA and have an enormous amount of logs that I am not 100% sure of what is going on. I am on my university's network and the source IP is on the same network. It is a UDP packet from port 137 to my port 137. I know this is one of the netbios ports which doesn't concern me since its not installed and my firewall blocks those ports. I am just curious about what is causing this. I read the zone alarm info on the alert and gives several possible explanations like DNS, port scans, shares and what not. I was thinking it might be DNS but was wondering if you guys would know what it mostly likely is. Thanks