In Microsoft Host Integration Server 2006 and in Microsoft Host Integration Server 2004, you may notice that some Advanced Program-to-Program Communications (APPC) session requests are sent to an IBM host system over an IP-DLC connection. This behavior occurs even if the specified remote APPC logical unit (LU) for the APPC application or for the Common Programming Interface for Communications (CPI-C) application is not defined.

The expected behavior is that APPC session requests are sent to the IBM host system over one of the host or peer connections that have a remote APPC LU that is defined in SNA Manager.

If an APPC session request is sent over a host or peer connection to an IBM host system that does not have the specified remote APPC LU defined, the IBM host system rejects the session request and sends a BIND-RSP error response.

Download Link : http://support.microsoft.com/kb/925127

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