A script I’ve put together to make my DSL PPPOE dialup persistant. First open the DD-WRT web interface, set WAN to PPPOE and configure a dummy username and password. Then go to Administration, Commands and paste the following script. Change your DSL username and password and save it, Startup Script.
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#!/bin/sh
PATH = /usr/sbin:/sbin:/usr/bin:$PATH
#ISP
USER = myispusername
PASS = myisppassword
#OTHER SETTINGS
INTRFACE = nic-vlan1
TIMEOUT = 120
setdefaultroute () {
echo …applying default route
route del default
route del default
route del default
route add default ppp0
}
connect () {
gpio disable 3; sleep 1
pppd plugin /usr/lib/rp-pppoe.so $INTRFACE noipdefault noauth nodefaultroute noaccomp noccp nobsdcomp nodeflate nopcomp novj novjccomp nomppe nomppc usepeerdns user $1 password $2 default-asyncmap mtu 1492 mru 1492 persist lcp-echo-interval 60 lcp-echo-failure 10 maxfail 0 unit $3
gpio enable 3; sleep 1
}
connlinkppp () {
while true
do
if [ ip link show dev ppp0 |grep ppp0 |awk '{ print $2 }' == “ppp0:” ]
then
echo …ppp link is up
break
else
echo …waiting for ppp to connect
gpio disable 3; sleep 1
gpio enable 3; sleep 1
fi
done
}
echo Starting link checking procedure… Please wait …
sleep 40
while true
do
if [ ip link show dev ppp0 |grep ppp0 |awk '{ print $2 }' == “ppp0:” ]
then
echo …ppp link is up
else
connect $USER $PASS 0
connlinkppp
sleep 10
setdefaultroute
fi
if [ ip link show dev ppp1 |grep ppp1 |awk '{ print $2 }' == “ppp1:” ]
then
echo …Resetting all ppp connections
killall redial
killall pppd
else
echo all ppp connections seems good
fi
echo returning to main loop…
sleep $TIMEOUT
done
Reboot the router!
