From: Richard Furda (riso@xxxxxxxxx)
Date: Sun Apr 07 2002 - 12:27:21 GMT-3
Hey again,
another silly problem I have with ISDN/DDR/Dial is call back-up.
My setup is as follows. 2 25xx routers are connected to a single NT1.
Each 25xx has 1 BRI channel. My goal is to get callback to work.
<R3> ===== <ISDN cloud> ===== <R5>
!
interface BRI0
no ip address
no ip directed-broadcast
encapsulation ppp
dialer pool-member 1
isdn switch-type basic-net3
isdn answer1 44642773
isdn calling-number 44642773
no cdp enable
ppp callback request
!
interface Dialer0
ip address 10.10.10.3 255.255.255.0
no ip directed-broadcast
encapsulation ppp
ip ospf interface-retry 0
dialer remote-name R5
dialer string 44642771
dialer pool 1
dialer-group 1
pulse-time 0
no cdp enable
ppp authentication chap
!
!
interface BRI0
ip address 10.10.10.5 255.255.255.0
encapsulation ppp
dialer fast-idle 30
dialer enable-timeout 30
dialer watch-disable 15
dialer map ip 10.10.10.3 name R3 class callback-class broadcast 44632773
dialer-group 1
isdn switch-type basic-net3
isdn answer1 44642771
isdn calling-number 44642771
no cdp enable
ppp callback accept
ppp authentication chap
!
map-class dialer callback-class
dialer callback-server username
dialer idle-timeout 5
dialer fast-idle 30
dialer enable-timeout 30
!
access-list 1 permit 10.10.10.0 0.0.0.255
dialer-list 1 protocol ip list 1
R3#ping 10.10.10.5
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.10.10.5, timeout is 2 seconds:
Apr 7 23:17:57.232: BR0 DDR: rotor dialout [priority]
Apr 7 23:17:57.236: BR0 DDR: Dialing cause ip (s=10.10.10.3, d=10.10.10.5)
Apr 7 23:17:57.236: BR0 DDR: Attempting to dial 44642771
Apr 7 23:17:57.936: ISDN BR0: Incoming call id 0xBC rejected, exceeded max cal
ls.
Apr 7 23:17:58.780: %LINK-3-UPDOWN: Interface BRI0:1, changed state to up
Apr 7 23:17:58.812: %DIALER-6-BIND: Interface BR0:1 bound to profile Di0
Apr 7 23:17:58.816: %ISDN-6-CONNECT: Interface BRI0:1 is now connected to 4464
2771
Apr 7 23:17:58.824: BR0:1 PPP: Treating connection as a callout
Apr 7 23:17:58.844: BR0:1 PPP: Phase is AUTHENTICATING, by the peer
Apr 7 23:17:58.860: BR0:1 CHAP: I CHALLENGE id 59 len 23 from "R5"
Apr 7 23:17:58.868: BR0:1 CHAP: O RESPONSE id 59 len 23 from "R3"
Apr 7 23:17:59.004: BR0:1 CHAP: I SUCCESS id 59 len 4
Apr 7 23:17:59.004: BR0:1 DDR: Authentication required for callback
Apr 7 23:17:59.168: %LINK-3-UPDOWN: Interface BRI0:1, changed state to down
Apr 7 23:17:59.200: BR0 DDR: has total 2 call(s), dial_out 0, dial_in 1
Apr 7 23:17:59.204: %DIALER-6-UNBIND: Interface BR0:1 unbound from profile Di0
Apr 7 23:17:59.208: BR0:1 DDR: disconnecting call
on R5, 'debug dialer' and 'debug callback' are set:
R5#
Apr 7 23:17:56.504: %LINK-3-UPDOWN: Interface BRI0:2, changed state to up
Apr 7 23:17:56.528: BR0:2 PPP: Treating connection as a callin
Apr 7 23:17:57.408: BR0:2 CHAP: O CHALLENGE id 59 len 23 from "R5"
Apr 7 23:17:57.432: BR0:2 CHAP: I RESPONSE id 59 len 23 from "R3"
Apr 7 23:17:57.440: BR0:2 CHAP: O SUCCESS id 59 len 4
Apr 7 23:17:57.444: BR0:2 DDR: PPP callback Callback server starting to R3 446
32773
Apr 7 23:17:57.448: BR0:2 DDR: disconnecting call
Apr 7 23:17:57.620: %LINK-3-UPDOWN: Interface BRI0:2, changed state to down
Apr 7 23:17:57.640: BR0:2 DDR: disconnecting call
Apr 7 23:17:58.592: %LINK-3-UPDOWN: Interface BRI0:2, changed state to up
Even though my configuration on R5 is 'dialer enable-timeout 30' R5 dials
back instantly, and not in 30 seconds. Since the two routers share a
single BRI, no more channels are available. Is this a bug, or I am doing
sometihng wrong?
Rich
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:57:59 GMT-3