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How Do I Configure 2 Dialer Interfaces to Support IP on One and IPX on the Other to the Same Location?

I want to be able to use dialer interfaces that belong to one BRI pool.

On one dialer interface, I want to run IP OSPF demand-circuit for IP backup. On the other dialer interface, I want to run IPX for IPX backup.

I want the ability to shut down IPX on the WAN link and use ISDN just for IPX. I also am trying to have both interfaces connect in case of WAN outage.

Is this possible or do I need to configure this differently ?

1 REPLY
Anonymous
N/A

Re: How Do I Configure 2 Dialer Interfaces to Support IP on One

I think your requirements can be met.

You can create two dialers using only one B-channel and they will support either IP or IPX.

However, you do not need to have two dialer interfaces to the same destination out on the BRI interface since you can have the two interfaces bundled under one dialer interface and run both IP and IPX on it.

Here is a sample configuration that provides the functionality you requested:

int serial 0

ip address 10.2.2.1 255.255.255.252

ipx network FACE0FF

backup interface bri 0

backup delay 0 0

int bri 0

no ip address

encapsulation ppp

ppp authentication chap

dialer pool-member 1 max-link 1

dialer pool-member 2 max-link 1

int dialer 0

ip address 10.3.3.1 255.255.255.252

dialer-group 1

dialer pool 1

encapsulation ppp

ppp authentication chap

dialer remote-name ww-tac

dialer string 222222222

ip ospf demand-circuit

interface dialer 1

ipx network BABE

dialer-group 2

dialer pool 2

encapsulation ppp

ppp authentication chap

dialer string 222222222

dialer remote-name ww-tac

ipx watchdog-spoof

ipx spx-spoof

dialer-list 1 protocol ip permit

dialer-list 2 protocol ipx permit

In this configuration, the backup is done on the physical ISDN BRI interface. If the WAN inteface is active, the backup remains down. If the WAN interface goes down, the backup comes out of standby and the dialer interface dials out to the remote router, setting up two connections: one through dialer 0 for IP and one through

dialer 1 for IPX.

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