Use dialer profiles on the Corp BRI interface (hub site) to define each of
the 4 spoke sites and use floating static routes (or possibly dialer watch)
to activate the dialer profiles upon link failure.
Basically you will define 4 logical dialer interfaces (kinda like sub
interfaces) and each of these will use the physical BRI interface when it is
needed. The far end IP address and the dial string will be part of these
logical interfaces which will allow multiple dialed destinations.
The floating static routes (configured with a higher administrative distance
than the RIP routes) will become active when one of the RIP routes falls out
of the routing table due to a link failure. Traffic which was once destined
for a FR interface will now be directed to one of the logical dialer
interfaces.
If you have configured the hub site to connect to the spoke sites with
separate physical interfaces (which I doubt) you could use a dialer watch
configuration in the place of floating static routes. You may be able to use
dialer watch with sub-interfaces, I'm not sure. The floating static routes
are a sure thing.
Check out these links,
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/dial_
c/dcdbakdp.htm
http://www.cisco.com/warp/public/793/access_dial/ddr_dialer_profile.html
HTH,
Connie
"FRS" <[EMAIL PROTECTED]> wrote in message 8t6nf8$l8u$[EMAIL PROTECTED]">news:8t6nf8$l8u$[EMAIL PROTECTED]...
> Hi,
>
> I have 4 sites reporting back to Corp over FR ....
> I need to implement ISDN backup to all sites ....
> How do I get the single Corp BRI interface to accept the different remote
> BRI ip addresses and route accordingly ... I am running RIP ....
>
> righ now, only one remote sites is configured as:
>
> int bri0/0
> ip x.x.3.2 255.255.255.0
> no ip directed broadcast
> encap ppp
> dialer string 123456789
> dialer string 987654321
> dialer-group 1
> isdn switch-type basic-5ess
> isdn spid1 12345678901
> isdn spid2 98765432101
> ppp auth chap
> ppp multilink
>
> corp config:
>
> int bri5/0
> ip x.x.3.1 255.255.255.0
> no logging event-subif-link-status
> isdn spid1 998887776554
> isdn spid2 887766554321
> dialer-group 1
> no fair-queue
> ppp auth chap
> ppp multilink
>
> the ip addresses of the other remote site's bri are x.x.4.2/24 ,
> x.x.6.2/24, etc.
>
> my question is :
>
> how do i get the configure the corp bri interface to recognise x.x.4.2,
> x.x.5.2, x.x.6.2 etc ... as it is now only configured for x.x.3.2 ....
>
> or does this not matter ....
>
> please help!
>
> thanks
>
>
>
>
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