ISDN DDR issue

[networker]

Hi all,

I plan to have 2 simultaneous ISDN connections on a unique BRI interface in a Cisco 1721 router.
I have tried with the configuration below but the DDR
doesn't work: the ISDN call does not start when I ping to the other side (despite interesting traffic is defined through the dialer list).
However, if I make a call through the "isdn call interface bri" command, the call is correctly established.

Thank you in advance!


interface BRI0
no ip address
encapsulation ppp
dialer pool-member 1
dialer pool-member 2
isdn switch-type basic-net3
no cdp enable

interface Dialer1
ip address A.B.C.E 255.255.255.252
encapsulation ppp
no ip split-horizon
dialer pool 1
dialer remote-name aaaaaa
dialer string YYYYYYYYYY
dialer hold-queue 10
dialer snapshot
dialer-group 2
snapshot client 15 360 suppress-statechange-update dialer
no cdp enable
ppp authentication chap

interface Dialer2
ip address A.B.C.D 255.255.255.252
encapsulation ppp
no ip split-horizon
dialer pool 2
dialer remote-name bbbbbb
dialer string XXXXXXXX
dialer hold-queue 10
dialer snapshot
dialer-group 2
snapshot client 15 360 suppress-statechange-update dialer
no cdp enable
ppp authentication chap

dialer-list 2 protocol ip permit

 

[eurobadger]

Hi

Try an extended ping or a traceroute instead. The default ping sometimes does not open the interface.

 

[gaveeve]

You need to put
ppp authentication chap
under the physical interface(I know, sounds redundant)
Then I would run some debug commands to see where it is failing.
show isdn status - see if line is up
debug ppp authentication
debug ppp negotiation
debug isdn events