Wvdial randomly drops 3G connection - How to auto-reconnect?

Question

I'm using a 3G modem for a router running Ubuntu server 10.04. I have the connection established using wvdial, which works successfully, but sometimes the connection drops. I would like it to auto re-connect.

I've set the "auto reconnect" in wvdial.conf, but this does not seem to work. Any ideas? Am I missing a config option, or should I try writing a script which polls the network status and resets if ppp0 has gone down?

Answer 1

You can disable the auto reconnect feature of wvdial and provide a wrapper script instead of calling wvdial (no need for polling):

#! /bin/bash
(
    while : ; do
        wvdial
        sleep 10
    done
) &