Troubleshooting

log severity debug pppPacket

• Use to configure a trace log file for a PPP interface.
• Specify one of the following interface types and an interface specifier. For example, specify slot/port:channel/subchannel for a serial POS PPP interface.
  • serial—Serial interface
  • atm—ATM interface
  • pos—Packet over SONET interface
• You also configure logging to direct the output to a specific destination. For information, see Overview of System Logging.
• Example
  host1(config-if)#log severity debug pppPacket serial 0/0:1/1 DEBUG 01/01/1970 00:16:58 pppPacket (1000001,*): interface:0/0:1/11/0:1,time: 0.00, tx lcp confReq, id = 226, length = 19, mru = 32759,authentication = chap MD5,magicNumber = 0x5387f9a2
  DEBUG 01/01/1970 00:16:58 pppPacket (1000001,*): interface: 0/0:1/11/0:1,time: 0.01, rx lcp confReq, id = 156, length = 18, mru = 32759,magicNumber = 0x2d8eac91, pfc, acfc
  DEBUG 01/01/1970 00:16:58 pppPacket (1000001,*): interface: 0/0:1/11/0:1,time: 0.01, tx lcp confAck, id = 156, length = 18, mru = 32759, magicNumber = 0x2d8eac91, pfc, acfc
• Use the no version to return the severity changes to their default setting or to the systemwide setting.
• See log severity.

ppp log

• Use to enable PPP packet or state machine logging on any dynamic interface that uses the profile being configured. Specify one of the following keywords:
  • pppPacket—Enables PPP packet logging
  • pppStateMachine—Enables PPP state machine logging
• Example
  host1(config-profile)#ppp log pppPacket

  Note: This command is equivalent to the log severity debug pppPacket and log severity debug pppStateMachine commands.

• Use the no version to disable packet or state machine logging.
• See ppp log.