Dial on Demand

[friskydrifter]

Senario:
a comp running Red Hat 7.3 with internet connection via modem (56k)
The internet connection from this machine provides internet access for clients attached to eth1 and eth0.
Connects using ifup
Wondering how to get it to dial automatically if it is down, when one of the clients tries to access the internet.

Anyway ta :-)

[JimH]

Some options you can add to your /etc/sysconfig/network-scripts/ifcfg-ppp*

Dial the connection when it is needed:
DEMAND=yes|no

Disconnect after a specified period of inactivity
IDLETIMEOUT=<number of seconds>

Automatically reconnect on disconnect
PERSIST=yes|no

Wait for specified number od seconds before trying to reconnect after being disconneted.
DISCONNECTTIMEOUT=<number of seconds>

Wait for the specified number of seconds before trying to reconnect after a failed connection attempt.
RETRYTIMEOUT=<number of seconds>

That should get you started. Replace the * in ifcfg-ppp* with the correct number. Probably 0.

Jim H

[friskydrifter]

Where do u find all this ?

Thanks alot Jim
;D

[JimH]

Back in "the old days" you had to write your own chat scripts to get online. Most of these are just equivalent to options for pppd that you used to place in your ppp options file.

Now distributions provide connection scripts for you. Look at the script /etc/sysconfig/network-scripts/ifup-ppp

Might also take a look at the manpage for pppd.

Jim H