Dialer-group points to a dialer-list that defines
interesting traffic to bring up the dialer interface
*and* reset the idle timer.
Without using a dialer-group and dialer-list then the
dialer circuit will hang up after 120 seconds - the
default idle-timeout period. If it's a backup
interface and the primary circuit isn't back up yet
after the idle period expires then the dialer
interface will hang up and dial again.
--- Ronny Jonathan wrote:
> > Group,
> >
> > Is the dialer-group command on the BRI interface
> optional. In other words
> > will the router dial if no dialer-group is
> configured on the bri
> interface?
>
> It depend on how you want to configure your BRI
> interface. Say you want to
> configure it as a DDR (Dial on Demand Routing), than
> the dialer-group
> command
> is a must.
>
> But if you configure it as a backup interface (using
> the backup command)
> than it is not needed to use the dialer-group
> command
>
> Regards,
> Ronny
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