Problems with PAP and CHAP Authentication
The following log file extract shows what happens when a client fails to respond to a request for authentication:
11/14/95 10:22:41 - Connection requested to miles 11/14/95 10:22:42 - Dialing number P365 ... 11/14/95 10:23:16 - Got modem connection 11/14/95 10:23:47 - PPP error on ipdptp0: Maximum number of configure requests exceeded |
In this example, the server requested PAP authentication and the client rejected the request. After a specified number of requests, the server broke the connection without starting the PPP negotiation.
The following log file extract shows what happens when the client responds to the request for authentication with the wrong password:
11/14/95 15:20:04 - Connection requested to miles 11/14/95 15:20:04 - Dialing number P365 ... 11/14/95 15:20:09 - Got modem connection 11/14/95 15:20:09 - LCP up on ipdptp0 11/14/95 15:20:09 - PPP error on ipdptp0: Negotiation of mandatory options failed |
In both cases, the server sees a failed PPP negotiation and generates the following log file messages:
11/14/95 15:20:08 - Received a call on pppdev0 11/14/95 15:20:09 - Using dialup_path with expect_login_id ppp2 11/14/95 15:20:09 - PPP error on ipdptp0: Negotiation of mandatory options failed 11/14/95 15:20:09 - Device pppdev0 has been disconnected |
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