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Cisco 801 routers with two routes on the same ISDN interface

I need to know if there are running configuration of 801 routers with two routes on the same isdn interface: one to the internet and one to a specified route. I know that with this configuration I can only use a route once a time and not at the same time, but I only need to know if they are possible without any problems.

My fear is this:

When a client ask the router to send a packet to internet while it is connected to the other route what happens? and also for the reverse case... Does the router drop the request or put down the connection to the specified route and dial for the internet route? Please let me know.

1 REPLY
Anonymous
N/A

Re: Cisco 801 routers with two routes on the same ISDN interface

The issue is not one of routing, but

of DDR. Both packets will be forwarded

to the BRI interface; if there is

and existing connection, the packet will

be sent. If there is not an existing

connection and there is a B-channel

available, we will dialout. If there

is not an existing connection and

both B-channels are used to some other

site, we will start the fast-idle timer

to try and disconnect one of the B

channels so that we can dialout to the

other remote number.

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