adsl down reload by itselve ?
 

Hy!

I have a problem everytime my isp is down.

How can i make my pc redial the internetconnection so about 5 minutes after the internetconnection is down.

My problem is that i have to restart the adsl-connection manual by typing /etc/adsl start.

Any idea ?

cu

Use a cron job to check if the connection is up if it is not then the script would start the connection.

so i will do something like:

ip=`ifconfig -a ppp0 | grep "inet addr" | cut -f2 -d ":" | cut -f1 -d "P"`

with this i will get the ip but how can i compare the ip to the default (down) ip ?

if ip = 1.1.1.1 then /etc/init.d/adsl restart ????

i don not know how i can compare the default ip to the real ip!

thanks

you can use the following script

#!/bin/sh
getIP=`/sbin/ifconfig eth0 | grep "inet addr" | cut -d ":" -f2 | cut -d " " -f1`
if [ "$getIP" == "1.2.3.4" ] ; then
/path/to/diallingScript.sh
fi

copy it in a file in /root, say, dialInterNet.sh, chmod +x, then run crontab -e, and put the following entry

*/2 * * * * /root/dialInterNet.sh

that should solve your problem.

all the best.

thank you, for your help!
i will trie that and write back!

nice day!

sorry,
 

unfortunately i can not check if the ip is xx.xx.xx.xx because the dev is down if the isp is offline!

ppp0: error fetching interface information: Device not found

idea?

sorry, made a mistake. you should be dialing if the line is down, right? so the script should be

#!/bin/sh
getIP=`/sbin/ifconfig ppp0 | grep "inet addr" | cut -d ":" -f2 | cut -d " " -f1`
if [ "$getIP" != "1.2.3.4" ] ; then
/path/to/diallingScript.sh
fi


even if you don't get an IP address, i.e., if the link is down, the value for getIP will be null -- or in other words, they will not match the IP designated by your ISP (replaced with 1.2.3.4) and will dial.

hope this helps

Hi,

This script could prove very useful as I have a similar problem :)

Sorry to hijack the thread, but what if it's a dynamic ip address? Would it not then always try reconnecting until it matched the specified ip address? Would there be a way to get it to check whether ppp0 is present full stop?

if you are having dynamic IPs, then you don't need to set rules to check the IP, you simply check if you have ppp0 up or not (in fact, I should have thought about it when the thread first arose, but i was thinking eth0 . . . :-( )

what you do is,


#!/bin/sh
getDev=`/sbin/ifconfig | grep ppp0`
if [ "$getDev" == "" ] ; then
/path/to/diallingScript.sh
fi


thus, if there is a ppp0, then the getDev will yeild some result and no scritp will run, on the other hand, if there _is_ no ppp0, then the result will be null and the script will run -- despite any IP conditionaing :-)

hope this solves your problem.

all the best.

thanks very much for your help there :D