XCLN: Error 502 When Logging on to Instant Messaging Home Server by Way of the Instant Messaging Router (272017)
The information in this article applies to:
- Microsoft Exchange 2000 Server
This article was previously published under Q272017 SYMPTOMS Clients that attempt to log on to their Instant Messaging
home server through an Instant Messaging router with a Firewall Topology Module
(FTM) defined within the organization, are continually prompted for
authentication credentials. In addition, a 502 error is generated on the
Internet Information Services (IIS) protocol log of the Instant Messaging
router each time a client attempts to authenticate. CAUSE If the initiating client's Internet Protocol (IP) address
is outside of the administrator-defined IP range within the FTM, authentication
through the Instant Messaging router will not occur. This behavior occurs
because the client's IP address is placed into its authentication hash. When
the Instant Messaging router determines that the client cannot connect directly
with the Instant Messaging home server, because its IP address falls outside of
the FTM, it attempts to gateway the authentication request. Because the IP address being used is
that of the Instant Messaging router instead of the Instant Messaging client,
the authentication hash credentials are different, which causes authentication
to stop responding. RESOLUTION To resolve this behavior, the client must have a direct
connection to its Instant Messaging home server for successful authentication
to occur. STATUSThis
behavior is by design.
| Modification Type: | Minor | Last Reviewed: | 4/25/2005 |
|---|
| Keywords: | kbprb KB272017 |
|---|
|