Vance.net blocks certain TCP and UDP ports in order to prevent viruses, trojans, worms, spam, backdoor programs, and other malicious types of internet activity. Here is a listing of ports we block:
TCP: 135, 137, 138, 139, 161, 445, 593, 1023, 1025, 1434, 2745, 3127, 5554, 9898, 27374
UDP: 135, 137, 138, 139, 445, 1023, 1025, 1433, 1434, 2745, 3127, 5554, 9898, 27374
This list was last updated July 20, 2004