Enable the following trace option settings:
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Tab
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Trace Options
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ISDN
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Later3 Tx and Layer3 Rx.
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Call
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Line Send, Line Receive, Targetting and Call Logging
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Interface
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Interface/Interface Queue
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PPP
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LCP Tx, LCP Rx, Security Tx, Security Rx, IPCP Tx and IPCP Rx.
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System
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Error, Print and Resource Status Prints.
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If the problem is to a specific destination then System Monitor can record information pertinent to that connection only. This is done by entering the appropriate service name in the Interface Name field in the PPP trace option settings. A blank entry means monitor all data connections.
You should also look for things like Password Authentication Protocol (PAP) or Challenge Handshake Authentication Protocol (CHAP) password failure. This indicates that the Service configuration is not correct.
Note that the WAN Tx and WAN Rx information is in raw hex format only. An in-depth knowledge of the IP Packet make-up is required to manually decode these messages and it is not done automatically.
