Question : What tcp/ip ports to open for network printing?

This is using MS W2K3 AD Domain. There are 2 network segments, separated by one firewall. Currently, there are 10+ network printers located at segment A. If I want to allow users from segment B to use these network printers, what port(s) had to open? This is using MS W2K3 print server.

Answer : What tcp/ip ports to open for network printing?

Print Spooler The Print Spooler system service manages all local and network print queues and controls all print jobs. Print Spooler is the center of the Windows printing subsystem. It manages the print queues on the system and communicates with printer drivers and input/output (I/O) components, such as the USB port and the TCP/IP protocol suite.

System service name: Spooler

Application protocol     :     Protocol : Ports

NetBIOS Datagram Service UDP 138

NetBIOS Name Resolution UDP 137

NetBIOS Session Service TCP 139

SMB TCP 445

Note The Spooler service uses RPC over named pipes. This service has the same firewall requirements as those of the "File and Printer Sharing" feature.

See this MS doc for full Service and Network port requirement for the Windows Server system....  http://support.microsoft.com/kb/832017