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#!/bin/sh
######################################################################
##
## On my host, pppd invokes this script with args:
## /etc/ppp/ip-up.local ppp0 /dev/pts/1 115200 192.168.2.1 192.168.2.3
##
## From the manual page for my pppd, these aguments are:
## scriptname interface-name tty-device speed local-IP-address remote-IP-address ipparam
##
## Some people have reported that their pppd returns their
## local-IP-address as $3. If that's also the case for you,
## you may need to change the $4 below to $3. This may not
## be necessary if your pppd also passes the local-ip-address
## in the environment as either PPP_LOCAL or IPLOCAL.
##
######################################################################
PATH=/usr/bin:${PATH}
IP=
IP=${IP:-$PPP_LOCAL}
IP=${IP:-$IPLOCAL}
IP=${IP:-$4}
IFACE=
IFACE=${IFACE:-$PPP_IFACE}
IFACE=${IFACE:-$1}
## update the DNS server unless the IP address is a private address
## that may be used as an internal LAN address (or PPtP tunnel).
logger -t ddclient $0 $*
case "$IP" in
10.*) ;;
172.1[6-9].* | 172.2[0-9].* | 172.3[0-1].*) ;;
192.168.*) ;;
"") logger -t ddclient No local IP given so cannot update
;;
*) (
sleep 5
ddclient -daemon=0 -syslog -use=if -if=$IFACE >/dev/null 2>&1
) &
;;
esac
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