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Troubles with multilink with bri's

Hello I have a 3640 with 2 bri that must call to a 3660 with 2 bri with multilink.

The telephone numbers in 3640 call in flat rate to the numbers in 3660, the flat rate is between

A --> C

B --> D

I want that A always calls C and B calls D.

Furthermore when i get the four channels up the ping is lost between the 2 routers.

What can i do?

Many thanks in advance

Gijon (Cisco 3640)

Current configuration: version 12.1

service timestamps debug datetime msec

service timestamps log datetime msec

no service password-encryption

hostname gijon

enable password xxx

username xxxx password xxx

isdn switch-type basic-net3 !

interface BRI2/0

no ip address

shutdown !

interface BRI2/1

description ISDN number A

no ip address

encapsulation ppp

dialer pool-member 1 isdn switch-type basic-net3

no cdp enable

ppp authentication chap

ppp multilink !

interface BRI2/2

description ISDN number B

no ip address

encapsulation ppp

dialer pool-member 1

isdn switch-type basic-net3

no cdp enable

ppp authentication chap

ppp multilink

interface Dialer1

ip unnumbered Ethernet0

encapsulation ppp

dialer pool 1

dialer string C

dialer string D

dialer load-threshold 1 either

dialer-group 1

no cdp enable

ppp authentication chap

ppp multilink !

ip route 0.0.0.0.0 0.0.0.0 Dialer1 !

dialer-list 1 protocol ip permit

oviedo (Cisco 3660)

Current configuration: !

version 12.1

service timestamps debug datetime msec

service timestamps log datetime msec

no service password-encryption !

hostname xx

username xx password xxx

isdn switch-type basic-net3 !

interface BRI0

no ip address

shutdown !

interface BRI1 !--- Phone number is C

no ip address

encapsulation ppp

dialer pool-member 1

isdn switch-type basic-net3

ppp authentication chap

ppp multilink !

interface BRI2 !--- Phone number is D

no ip address

encapsulation ppp

dialer pool-member 1

isdn switch-type basic-net3

ppp authentication chap

ppp multilink !

interface BRI3

no ip address

shutdown !

interface Dialer1

ip unnumbered Ethernet0

encapsulation ppp

dialer pool 1

dialer remote-name gijon

dialer-group 1

ppp authentication chap

ppp multilink !

ip route 10.10.10.0 255.255.255.0 Dialer1

dialer-list 1 protocol ip permit

1 REPLY
Bronze

Re: Troubles with multilink with bri's

To force A dialling C and B to D, you can do two things: either use legacy DDR, or different pools.

1/ Legacy DDR

- remove the dialer interface

- add 'dialer map' statements to the physical interfaces

2/ using different pools:

interface bri 2/2

no dialer pool-member 1

dialer pool-member 2

interface Dialer1

no dialer string D

interface Dialer2

dialer string D

dialer pool 2

ip route 0.0.0.0 0.0.0.0 Dialer2

or something along these lines...

hth

Herbert

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