Demand-dial Connection Fails with Event 20050

 Last reviewed: December 4, 1997
Article ID: Q170278
The information in this article applies to:
  • Microsoft Windows NT Server version 4.0
  • Microsoft Routing and Remote Access Service Update for Windows NT Server 4.0

SYMPTOMS

Your attempts to connect to a remote router are unsuccessful. In the event log of one the routers you get the following error. The error may be logged on the router making or receiving the call: 

   Event:       20050
   Source:      Router
   Description: The user <domain\username> connected to port <portname>
                has been disconnected because the computer could not be
                projected onto the network.
The Rasipcp.log file on this computer shows information similar to the following: 

   [158] 10:23:03: IPCP: ReconfigureTcpip(04878585 / ffffffff)...
   [158] 10:23:03: IPCP: ReconfigureTcpip done(1214)
   [158] 10:23:03: IPCP: ReconfigureTcpip=1214
The Ppp.log file on this computer will have the following error message: 

   [158] 10:23:03:071: Notifying IPCP of projection notification
   [158] 10:23:03:071: RasIPCPProjectionNotification returned 1214
The logs on the other router do not indicate any errors.

meaning

CAUSE

This error is caused by one of the routers requesting a bad IP address. In this case, the router is requesting an address of 133.133.135.4 and the routers are using a subnet mask of 255.255.255.252. Using a mask of 252 results in the following configuration: 

   133.133.135.4  -  Network ID
   133.133.135.5  -  First Host ID
   133.133.135.6  -  Second Host ID
   133.133.135.7  -  Subnet Broadcast ID
Therefore, the IP address being requested is a Network ID and not a Host ID. The same error will occur if the Subnet Broadcast ID (133.133.135.7) were requested.

RESOLUTION

Change the demand dial interface to request a valid Host Address or to use an IP address assigned by remote router.

Additional reference words: rras
Keywords : NTRAS ntrouter NTSrv nttcp kbnetwork
Version : 4.0
Platform : winnt
Issue type : kbinfo

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Last reviewed: December 4, 1997
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