DOCUMENT:Q295731 16-JUN-2001 [exchange] TITLE :XCON: RPC Fails Between Site Connectors When Servers Use IPX PRODUCT :Microsoft Exchange PROD/VER::4.0,5.0,5.5 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Exchange Server, versions 4.0, 5.0, 5.5 ------------------------------------------------------------------------------- SYMPTOMS ======== When you use site connectors or multiple servers in a site where Internetwork Packet Exchange (IPX) is the only protocol that is used, if a Novell Bindery server does not exist, remote procedure call (RPC) fails between the two servers that are only using IPX. Exchange Server RPC over Sequenced Packet Exchange (SPX) tries a getaddressbyname by using bindery lookup. This process fails because a Bindery server is not available; Service Advertising Protocol (SAP) lookup also fails because an SAP Agent is not present to respond. RESOLUTION ========== To resolve this issue, use either of the following methods: - Enable Gateway Services for NetWare (GSNW) on the servers, and then make sure that you have a Netware server available that supports bindery functions. This method is the preferred method because bindery is more efficient than SAP. -or- - Install GSNW and the SAP Agent on both servers. This method is not the preferred method because SAP is essentially a broadcast. However, this method is the only method you can use if a Bindery server is not available. The third-party products discussed in this article are manufactured by vendors independent of Microsoft; we make no warranty, implied or otherwise, regarding these products' performance or reliability. Additional query words: ====================================================================== Keywords : Technology : kbExchangeSearch kbExchange500 kbExchange550 kbExchange400 kbZNotKeyword2 Version : :4.0,5.0,5.5 Issue type : kbprb ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2001.