From: Shane Joiner (Shane.Joiner@slcc.edu)
Date: Sat Mar 27 2004 - 21:24:50 GMT-3
I'm using an adtran isdn simulator and can't get end-to-end layer 3 up so I
can ping from one bri interface to the other bri interface. I've gone through
the documentation and archives and everything looks correct. I'm starting to
think it is because of the older ios on my lab routers.
Using debug dialer, debug ip packet, and debug isdn events, I see the
connection established and PPP negotiates. Then I see the "encapsulation
failed" messages and dialer debug messages that the receiving router is trying
to make another call back to the original router instead of using the call
that is already available. If I remove the dialer map statement from one side
then it comes up and is successfull. The lab requirement is that either
router should be able to initiate a call so removing the map statement or
dialer string wouldn't be an option.
Here are the configs and dialer messages -
router 6
isdn switch-type basic-dms100
interface BRI0
ip address 192.168.1.5 255.255.255.0
encapsulation ppp
dialer map ip 192.168.1.6 broadcast 9572222
dialer-group 1
isdn spid1 80195711110001 9571111
isdn spid2 80195711120001 9571112
ppp authentication pap
ppp pap sent-username r6-2503 password 7 1511021F0725
dialer-list 1 protocol ip permit
router 2
interface BRI0/0
ip address 192.168.1.6 255.255.255.0
encapsulation ppp
dialer idle-timeout 300
dialer map ip 192.168.1.5 broadcast 9571111
dialer-group 1
isdn switch-type basic-dms100
isdn spid1 80195722220001 9572222
isdn spid2 80195722230001 9572223
ppp authentication pap
ppp pap sent-username r2-2651 password 0 cisco
dialer-list 1 protocol ip permit
debug on router2 as it responds to call from router6-
00:32:158913790016: %LINK-3-UPDOWN: Interface BRI0/0:1, changed state to up
00:32:37: BR0/0:1 DDR: Authenticated host r6-2503 with no matching dialer map
00:32:37: BR0/0:1 DDR: dialer protocol up
00:32:38: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0/0:1, changed
stat
e to up
00:32:39: IP: s=192.168.1.5 (BRI0/0), d=192.168.1.6 (BRI0/0), len 100, rcvd 3
00:32:39: IP: s=192.168.1.6 (local), d=192.168.1.5 (BRI0/0), len 100, sending
00:32:39: BR0/0 DDR: Dialing cause ip (s=192.168.1.6, d=192.168.1.5)
00:32:39: BR0/0 DDR: Attempting to dial 9571111
00:32:39: IP: s=192.168.1.6 (local), d=192.168.1.5 (BRI0/0), len 100,
encapsulat
ion failed
00:32:39: BRI0/0: wait for isdn carrier timeout, call id=0x8040
00:32:41: IP: s=192.168.1.5 (BRI0/0), d=192.168.1.6 (BRI0/0), len 100, rcvd 3
00:32:41: IP: s=192.168.1.6 (local), d=192.168.1.5 (BRI0/0), len 100, sending
00:32:41: BR0/0 DDR: Dialing cause ip (s=192.168.1.6, d=192.168.1.5)
00:32:41: BR0/0 DDR: Attempting to dial 9571111
00:32:41: IP: s=192.168.1.6 (local), d=192.168.1.5 (BRI0/0), len 100,
encapsulat
ion failed
00:32:41: BRI0/0: wait for isdn carrier timeout, call id=0x8041
I can get it to work if I make r6 call r2's 2nd spid and make r2 call r6's
second spid but it seems like the router should use one call for
unidirectional traffic.
Thanks,
Shane
This archive was generated by hypermail 2.1.4 : Thu Apr 01 2004 - 08:15:49 GMT-3