Configuring the Point-to-Point Protocol (PPP)

Signaling the PPP daemon

The PPP daemon is the PPP component that reads the PPP configuration files. As stated in ``PPP configuration files'', the daemon reads the /etc/ppphosts and /etc/pppfilter files when it starts up. If you change these files the daemon must reread them for the changes to take effect. You can have the daemon reread these files by:

restarting the daemon.
sending the daemon a SIGHUP signal.

The daemon is restarted anytime TCP/IP is stopped and then started again. To avoid stopping and starting TCP/IP, signal the daemon using the following command:

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

The file /etc/pppd.pid contains the process ID of the daemon.

Upon rereading these files, the daemon tears down and rebuilds any PPP network interfaces not currently in use for which the endpoint definition has changed. If an interface is in use, the daemon rebuilds the interface the next time packets are routed through it.

NOTE: Whenever you use the PPP Manager to add, remove, or reconfigure PPP link endpoints, it sends a SIGHUP signal to the PPP daemon automatically.

You do not need to signal the PPP daemon if you change the /etc/pppauth file. The daemon reads this file during PPP negotiation and so reads it automatically when establishing a link where authentication is required.