Oct 27, 2008 · The following is the list of services and their ports used for Active Directory communication: UDP Port 88 for Kerberos authentication; UDP and TCP Port 135 for domain controllers-to-domain controller and client to domain controller operations. TCP Port 139 and UDP 138 for File Replication Service between domain controllers.

Port 137 (tcp/udp) :: SpeedGuide 12 rows UDP 137 - Port Protocol Information and Warning! Side note: UDP port 137 uses the Datagram Protocol, a communications protocol for the Internet network layer, transport layer, and session layer. This protocol when used over PORT 137 makes possible the transmission of a datagram message from one computer to an application running in another computer. GRC | Port Authority, for Internet Port 137

Service overview and network port requirements for Windows

Service overview and network port requirements for Windows This port is also used for intra-array traffic. This port is used only by the ISA management MMC during remote server and service status monitoring. This is the range in TMG. Please note that TMG extends the default dynamic port ranges in Windows Server 2008 R2, Windows 7, Windows Server 2008, and Windows Vista. 24. Kerberos Key Distribution Center

UDP 137 - Port Protocol Information and Warning!

SMB mainly used for file sharing. In general SMB protocol is used for inter-process communication between the same host processes or remove host processes. SMB Port 139 or 445. Newcomers to the Windows ecosystem generally confuses port numbers of SMB. SMB service is provided over two ports. TCP port 139 is SMB over NETBIOS. NetBIOS - The Wireshark Wiki