## Check the internetconnection  


### checkconnection.sh  
  
Check the connection with curl or ping if not available.  

  
### restartmodem.sh  
  
Restart any given interface of OpenWrt.


## How to install on OpenWrt


### Download scripts and make it executeable

Wget should be installed by default on OpenWrt. (git works as well, but it's not installed by default.)

```
# wget https://git.datenkastl.org/shell-scripts/checkconnection/raw/branch/main/checkconnection.sh
# wget https://git.datenkastl.org/shell-scripts/checkconnection/raw/branch/main/restartmodem.sh
# chmod +x checkconnection.sh
# chmod +x restartmodem.sh
```


### Add restartmodem.sh as failcommand

Open checkconnection
```
# vi checkconnection.sh
```
and add the path to your *restartmodem.sh* at *failcommand=*


### Install curl if desired

```
# opkg update
# opkg install curl
```


### Add cronjob

Open crontab
```
# crontab -e
```
and add vor example 
```
*/1 * * * *     /root/scripts/checkconnection.sh > /dev/zero*
```
to check the connection every minute and restart the modem if the check fails.