Configure your FireWall Port to work with Symantec AntiVirus
Quick Listing
Open the following ports to enable Symantec AntiVirus Corporate Edition and LiveUpdate to work correctly:

UDP port 38293 — Intel PDS listening for ping packets
UDP port 2967 — RTVScan request to Winsock
TCP ports — 80, 21, 443 - LiveUpdate

Filed under: Windows XP