Microsoft KB Archive/123257

= TCP/IP Socket Numbers Used by SNA Server 2.1 =

Article ID: 123257

Article Last Modified on 5/22/2003

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APPLIES TO


 * Microsoft SNA Server 2.0
 * Microsoft SNA Server 2.1
 * Microsoft SNA Server 3.0
 * Microsoft SNA Server 2.11 Service Pack 1
 * Microsoft SNA Server 2.11 Service Pack 2
 * Microsoft SNA Server 3.0 Service Pack 4
 * Microsoft SNA Server 4.0
 * Microsoft SNA Server 3.0 Service Pack 2
 * Microsoft SNA Server 3.0 Service Pack 3
 * Microsoft SNA Server 4.0
 * Microsoft SNA Server 4.0 Service Pack 1

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This article was previously published under Q123257



SNA Server uses the following socket numbers to support SNA Server clients over TCP/IP (over Windows Sockets): 0x05C5 - Socket used to receive SNA application traffic (3270, APPC). This is the socket used to communicate to the SNA Server service.

0x05C6 - Socket used to support SNA Server client "sponsor sessions". This is the socket used to communicate to the Snabase service over which the client workstation receives a list of other SNA Servers running in the domain.

The SNA Server client socket number is allocated dynamically through the Windows Sockets interface.

In addition to TCP/IP protocol over Windows Sockets, Microsoft SNA Server version 2.1 clients use the following to communicate with the server:
 * Named pipes (over any local area network [LAN] transport supported by the Microsoft network redirector included with Windows for Workgroups, Windows NT, or LAN Manager)
 * NetWare IPX/SPX
 * Banyan IP (over Banyan Vines)
 * AppleTalk

The third-party products discussed here are manufactured by vendors independent of Microsoft; we make no warranty, implied or otherwise, regarding these products' performance or reliability.

Additional query words: wfw wfwg prodsna 2.10

Keywords: KB123257

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