#!/bin/sh## A sample script to establish PPP session(s) via SSH 1.x## Adi Masputra <adi.masputra@sun.com># Jan 24, 2000### You'd definitely want to change the following addresses to suit# your network configuration#LOC_IP=10.0.0.1REM_IP=10.0.0.2NETMASK=255.255.0.0export LOC_IP REM_IP## This is the remote peer where sshd is running, either# its hostname or IP address#PPPD_RHOST=myremotehost## For this example, we assume that pppd on both local and remote# machines reside in the same place, /usr/local/bin/pppd#PPPD_LOC=/usr/local/bin/pppd## The location of local options file (where ssh client is running).# Note that the sample options file included in the distribution# may need further customizations, depending on your needs. The 'noauth'# option specified in the file is there to simplify the example, although# some may choose to have it there and rely on ssh authentication# instead.#PPPD_LOC_OPT=/etc/ppp/options-ssh-loc## The location of remote options file (where sshd daemon is running)# Note that the sample options file included in the distribution# may need further customizations, depending on your needs. The 'noauth'# option specified in the file is there to simplify the example, although# some may choose to have it there and rely on ssh authentication# instead. Also note that the remote options file need to include the 'notty'# options for this to work.#PPPD_REM_OPT=/etc/ppp/options-ssh-rem## The location of ssh client on the local machine#SSH_LOC=/usr/local/bin/sshexport PPPD_LOC PPPD_LOC_OPT PPPD_REM_OPT PPPD_RHOST SSH_LOC## Uncomment the following to enable IPv6, note that the IPv6 support # needs to be enabled during compilation## PPPD_IPV6='+ipv6 ipv6cp-use-ipaddr'export PPPD_IPV6## And execute pppd with the pty option, specifying ssh client as the# slave side of the pseudo-tty master/slave pair. Note that on this example,# ssh has been compiled to allow NULL encryption (thus the '-c none' option),# but in reality, you'd probably want to specify the encryption algorithm.# See the man page of ssh(1) for details.#exec $PPPD_LOC \        pty '$SSH_LOC -c none $PPPD_RHOST $PPPD_LOC $REM_IP:$LOC_IP $PPPD_IPV6 file $PPPD_REM_OPT' \        $LOC_IP:$REM_IP netmask $NETMASK $PPPD_IPV6 file $PPPD_LOC_OPT