ISDN configuration question

polm

Diamond Member
May 24, 2001
3,183
0
0
I have a virtual lab program that I am using to study for my CCNA. Here is a diagram of the lab

I am attempting to configure the ISDN connections Router1-->Gateway, and Router2-->Gateway.

Currently I have the configurations such that I can ping from Router1-->Gateway, Router2-->Gateway, Gateway-->Router1, but pings are failing from Gateway-->Router2.

When I run "debug isdn q931" while pinging Gateway-->Router2, I can see that the Gateway router is attempting to user the Dialer1 interface and dial string 1000001 to connect to Router2. Why would it do this when I setup Dialer2 as the connection for Router2 ?

Here are the related config options:

Gateway:
!
isdn switch-type primary-5ess
!
interface Serial3/0:15
bandwidth 64
no ip address
dialer pool-member 1
!
interface Dialer1
bandwidth 56
ip address 10.30.0.1 255.255.255.0
encapsulation hdlc
dialer remote-name router1
dialer string 1000001
dialer pool 1
!
interface Dialer2
bandwidth 56
ip address 10.35.0.1 255.255.255.0
encapsulation hdlc
dialer remote-name router2
dialer string 1000002
dialer pool 1
!
dialer-list 1 protocol ip permit

Router1
!
isdn switch-type basic-5ess
!
interface BRI3/0
bandwidth 64
ip address 10.30.0.2 255.255.255.0
encapsulation hdlc
dialer string 5555555
dialer-group 1
!
dialer-list 1 protocol ip permit

Router2
!
isdn switch-type basic-5ess
!
interface BRI0/0
bandwidth 16
ip address 10.35.0.2 255.255.255.0
dialer string 5555555
dialer-group 1
!
dialer-list 1 protocol ip permit

 

Slvrtg277

Golden Member
Sep 9, 2004
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0
0
Hint - look into using more than one dialer-pool.

I can help further if needed, but I think you can probably figure this one out.
 

polm

Diamond Member
May 24, 2001
3,183
0
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Originally posted by: Slvrtg277
Hint - look into using more than one dialer-pool.

I can help further if needed, but I think you can probably figure this one out.

You give me too much credit. ;)

I was under the impression that to configure a PRI/E1 line , that I only need to configure the 16th channel (Serial3/0:15) with a membership to a dialer pool, and that all other B channels would adapt to this config.

I was under the impression that multiple dialer interfaces could share the physical channels via the dialer pool.

What do i need to do ? Assign particular channels to particular pools and then bind different pools to the different dialer interfaces ?
 

polm

Diamond Member
May 24, 2001
3,183
0
0
I just got word back from the makers of the Virtual Lab.

Appartently there is a flaw in the application that only allows a single dialer. They are working to fix and will hope to include in the next update.