Please post the following commands after the serial interface has been brought down:
show ip route show isdn status show interface bri 0 I dont see a problem with your config at all. I am curious to know if RIP is propagating the routing table IF it is that the ISDN lines come up. Also, perhaps you have an wuthentication issues at hand. Maybe post the "debug ppp negotiations and debug ppp authentication" as well. Thanks, Mario Puras SoluNet Technical Support Mailto: [EMAIL PROTECTED] Direct: (321) 309-1410 888.449.5766 (USA) / 888.SOLUNET (Canada) -----Original Message----- From: Iwan Hoogendoorn [mailto:[EMAIL PROTECTED] Sent: Monday, June 09, 2003 3:40 AM To: [EMAIL PROTECTED] Subject: Problem with backup line... [7:70386] Hi, I am having a problem with setting up a backup line with 2 ISDN routers (2503) they are connected with a serial connection and a ISDN as backup. I can ping the serial ip adresses...but if i do an extended ping and lets say i ping the interface 1000 times and disconnect the Serial cable it should come up with the ISDN line but t does not come up. This is allso very strange ... I have RouterA and RouterB... When i log into the routerB and i tupe a no shutdown command on the BRI interface i get this: RouterB#config t Enter configuration commands, one per line. End with CNTL/Z. RouterB(config)#interface bri0 RouterB(config-if)#no shut RouterB(config-if)# %LINK-3-UPDOWN: Interface BRI0:1, changed state to down %LINK-3-UPDOWN: Interface BRI0:2, changed state to down %ISDN-6-DISCONNECT: Interface BRI0:1 disconnected from unknown , call lasted 81 seconds %ISDN-6-DISCONNECT: Interface BRI0:2 disconnected from unknown , call lasted 82 seconds %ISDN-6-LAYER2DOWN: Layer 2 for Interface BRI0, TEI 102 changed to down %ISDN-6-LAYER2UP: Layer 2 for Interface BR0, TEI 103 changed to up It comes UP again...that is strange isnt it? These are my configs for the routers: ############################ RouterA######################## RouterA#sh run Building configuration... Current configuration: ! version 11.2 no service password-encryption no service udp-small-servers no service tcp-small-servers ! hostname RouterA ! enable password cisco ! username RouterB password 7 030752180500 isdn switch-type basic-net3 ! interface Ethernet0 ip address 195.1.1.1 255.255.255.0 no keepalive shutdown ! interface Serial0 backup delay 5 20 backup interface BRI0 ip address 193.1.1.1 255.255.255.0 encapsulation ppp no fair-queue clockrate 64000 ! interface Serial1 no ip address shutdown ! interface BRI0 ip address 196.1.1.1 255.255.255.0 encapsulation ppp dialer idle-timeout 90 dialer map ip 196.1.1.2 name RouterB broadcast 21 dialer-group 1 no fair-queue ppp authentication chap ppp multilink ! router rip network 195.1.1.0 network 193.1.1.0 network 196.1.1.0 ! no ip classless dialer-list 1 protocol ip permit ! line con 0 password cisco login line aux 0 line vty 0 4 login ! end RouterA#sh ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate default U - per-user static route, o - ODR Gateway of last resort is not set 193.1.1.0/24 is variably subnetted, 2 subnets, 2 masks C 193.1.1.0/24 is directly connected, Serial0 C 193.1.1.2/32 is directly connected, Serial0 R 196.1.1.0/24 [120/1] via 193.1.1.2, 00:00:09, Serial0 ############################# RouterB########################### RouterB#sh run Building configuration... Current configuration: ! version 11.2 service timestamps debug datetime localtime no service password-encryption no service udp-small-servers no service tcp-small-servers ! hostname RouterB ! enable password cisco ! username RouterA password 7 030752180500 isdn switch-type basic-net3 ! interface Ethernet0 ip address 197.1.1.1 255.255.255.0 no keepalive shutdown ! interface Serial0 ip address 193.1.1.2 255.255.255.0 encapsulation ppp ! interface Serial1 no ip address shutdown ! interface BRI0 ip address 196.1.1.2 255.255.255.0 encapsulation ppp dialer idle-timeout 90 dialer map ip 196.1.1.1 name RouterA broadcast 20 dialer-group 1 no fair-queue ppp authentication chap ppp multilink ! router rip network 193.1.1.0 network 197.1.1.0 network 196.1.1.0 ! no ip classless dialer-list 1 protocol ip permit ! line con 0 line aux 0 line vty 0 4 password cisco login ! end RouterB#sho ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate default U - per-user static route, o - ODR Gateway of last resort is not set 193.1.1.0/24 is variably subnetted, 2 subnets, 2 masks C 193.1.1.1/32 is directly connected, Serial0 C 193.1.1.0/24 is directly connected, Serial0 C 196.1.1.0/24 is directly connected, BRI0 Please help me with this... Thank You Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=70404&t=70386 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
