Idle Solaris PPP 4.0 Daemon Might Exit During Holdoff Period (4647938)

The Solaris Point-to-Point Protocol (PPP) 4.0 daemon (pppd) might unexpectedly exit under the following conditions.

• The pppd daemon is idle.

• The demand and holdoff options to the pppd daemon are enabled.

• A packet arrives during the holdoff period.

If the pppd daemon exits unexpectedly, a message that is similar to the following message is logged in the appropriate system log file.

current date hostname pppd[PID]: [ID 702911 daemon.error] unable
to set IP to pass: Invalid argument
current date hostname pppd[PID]: [ID 702911 daemon.error] unable to
enable IPCP

See the man page pppd(1M) for more information on the demand and holdoff options to the pppd daemon.

Workaround: Choose one of the following workarounds.

• If you do not need the pppd daemon to wait before trying to re-initiate links, do not use the holdoff option with the pppd daemon.

• Set the holdoff option value to 0.

• Run the pppd daemon from a loop script that is similar to the following Bourne shell script.

  #!/bin/sh
          while :; do
                  /usr/bin/pppd cua/b lock idle 60 demand nodetach noauth \
                  38400 10.0.0.1:10.0.0.2 holdoff 20
          done