Logging PPP information

Debugging information about SCO PPP activities is available from syslog(SLIB) and at the system console. This section describes what information is available and where. See ``Troubleshooting PPP'' for help in interpreting and using this information.

PPP debugging information is generated by three sources:

PPP driver

The driver information is available through syslog. The driver passes its debugging information to the PPP daemon that actually logs the information to /usr/adm/syslog; therefore, the log identifies the information as coming from pppd. The driver logs information on a per-link basis, so an individual link can be debugged. The amount of information that the driver logs about a link is configurable on an unestablished link using the PPP Manager. The change to the debug level takes effect the next time the link is established.

To change the debug value of an established link, enter the following command:

ifconfig interface debug debug_number

interface must be an established PPP interface such as ppp0 and debug_number a value of 0, 1, or 2.

PPP daemon

Information from the PPP daemon is available through syslog. The amount of information logged depends on the debug level which can be set using the -d option to pppd(ADMN). pppd generates four types of messages: ``warnings'', ``errors'', ``alerts'', and ``info''. pppd always logs all ``warning'', ``error'', and ``alert'' messages. pppd logs ``info'' messages according to the debug level. The default debug level of 0 disables ``info'' messages. A level greater than 0 allows ``info'' messages to be logged.

To turn on logging of ``info'' messages, enter the following command:

kill -16 `cat /etc/pppd.pid`

To turn off logging of ``info'' messages:

kill -17 `cat /etc/pppd.pid`

These commands also affect the logging of UUCP activity.

UUCP

When PPP requests a UUCP link, the UUCP activity is logged to the system console (/dev/tty01). The amount of information logged depends on the value of the daemon debug level described above. Recognized numbers are 1 to 9, with higher numbers logging more UUCP information.

The UUCP logging level is increased by 1 up to a maximum of 9, each time you enter the following command:

kill -16 `cat /etc/pppd.pid`

To turn off UUCP logging, enter:

kill -17 `cat /etc/pppd.pid`.

See also:

• ``How UUCP is configured for outgoing dialup''

• ppphosts(SFF)

• pppd(ADMN)

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