[c-nsp] Multiple receiving calls on ISDN backup

Oliver Boehmer (oboehmer) oboehmer at cisco.com
Thu Jun 29 10:07:07 EDT 2006


Kanagaraj Krishna <> wrote on Thursday, June 29, 2006 3:15 PM:

> Hi,
>    I have 2811 cisco router with 3 leased line and 1 isdn. All three
> leased circuits would be using the single ISDN for backup. I know
> that you can use different dialer profile to call different numbers
> for each circuit (with different ip address and routing). What i want
> to know is, if the calls are initiated from the remote site. Is it
> possible to have 3 different receiving profile? If yes, how? Thanks.

yes, just use PPP authentication on the BRI and map the profiles to the
remote peers based on the remote chap hostname, i.e. something like this
(incomplete config, but you should get the idea):

int bri0
 encaps ppp
 ppp authen chap
 dialer pool-member 1
 ..
int dialer1
 encaps ppp
 dialer remote-name foo
 dialer pool 1
 ...
int dialer2
 encaps ppp
 dialer remote-name bar
 dialer pool 1
 ...
int dialer3
 encaps ppp
 dialer remote-name baz
 dialer pool 1

Hope it helps..

	oli



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