Current configuration : 1546 bytes ! version 12.1 no service single-slot-reload-enable service timestamps debug uptime service timestamps log uptime no service passWord-encryption ! hostname R1 ! logging rate-limit console 10 except errors ! ip subnet-zero no ip finger no ip domain-lookup ! ip multicast-routing cns event-service server ! ! ! interface Loopback0 ip address 1.1.1.1 255.255.255.0 ip ospf network point-to-point ! interface Tunnel0 ip address 1.1.103.1 255.255.255.252 ip pim sparse-mode tunnel source Loopback0 tunnel destination 1.1.3.3 ! interface Ethernet0 ip address 1.1.15.1 255.255.255.0 ip pim sparse-mode ! interface Ethernet1 ip address 1.1.11.1 255.255.255.0 ! interface Serial0 no ip address encapsulation frame-relay no frame-relay inverse-arp frame-relay lmi-type cisco<
BR>! interface Serial0.1 point-to-point ip address 1.1.8.1 255.255.255.252 frame-relay interface-dlci 106 ! interface Serial1 no ip address shutdown ! router ospf 64 router-id 1.1.1.1 log-adjacency-changes area 0 authentication message-digest area 11 virtual-link 1.1.3.3 message-digest-key 1 md5 cisco passive-interface Tunnel0 network 1.1.1.1 0.0.0.0 area 11 network 1.1.8.1 0.0.0.0 area 11 network 1.1.11.1 0.0.0.0 area 11 network 1.1.15.1 0.0.0.0 area 10 ! ip kerberos source-interface any ip classless no ip http server ip pim rp-address 1.1.4.4 ip mroute 150.100.2.0 255.255.255.0 Tunnel0 ip mroute 1.1.4.4 255.255.255.255 Tunnel0 ! ! ! line con 0 PRivilege level 15 logging synchronous transport input none line aux 0 line vty 0 4 login ! end
``````````````````````````````````````````````````````````````` R1#sh ip pim interface
Address Interface Ver/ Nbr Query DR DR Mode Count Intvl Prior 1.1.15.1 Ethernet0 v2/S 0 30 1 1.1.15.1 1.1.103.1 Tunnel0 v2/S 1 30 1 0.0.0.0 R1#sh ip pim nei PIM Neighbor Table Neighbor Interface Uptime/EXPires Ver DR Address Priority/Mode 1.1.103.2 Tunnel0 00:38:46/00:01:29 v2 1 / S
Address Interface Ver/ Nbr Query DR DR Mode Count Intvl Prior 1.1.16.3 Serial0/0 v2/S 1 30 1 1.1.16.4 1.1.12.3 Serial0/1.1 v2/S 1 30 1 1.1.12.5 1.1.103.2 Tunnel0 v2/S 1 30 1 0.0.0.0 R3#sh ip pim nei R3#sh ip pim neighbor PIM Neighbor Table Neighbor Interface Uptime/Expires Ver DR Address Prio/Mode 1.1.16.4 Serial0/0 04:21:08/00:01:26 v2 1 / DR S 1.1.12.5 Serial0/1.1 04:20:55/00:01:37 v2 1 / DR S 1.1.103.1 Tunnel0 00:40:26/00:01:20 v2 1 / S R3# R3#sh run Building configuration...
Current configuration : 3174 bytes ! ! Last configuration change at 19:40:44 mgt Sun Feb 28 1993 ! version 12.2 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R3 ! ! username R5 password 0 cisco clock timezone mgt -8 ip subnet-zero ! ! no ip domain lookup
ip multicast-routing ! isdn switch-type basic-net3 ! ! voice call carrier capacity active ! ! ! ! ! ! ! ! ! mta receive maximum-recipients 0 ! ! ! ! interface Loopback0 ip address 1.1.3.3 255.255.255.0 ip ospf network point-to-point ! interface Tunnel0 ip address 1.1.103.2 255.255.255.252 ip pim sparse-mode tunnel source Loopback0 tunnel destination 1.1.1.1 ! interface FastEthernet0/0 ip address 1.1.9.3 255.255.255.0 duplex auto speed auto standby use-bia standby ip 1.1.9.1 standby priority 105 standby preempt standby track Serial0/0 ! interface BRI0/0 no ip addres
s encapsulation ppp dialer pool-member 1 isdn switch-type basic-net3 ! interface Serial0/0 ip address 1.1.16.3 255.255.255.0 ip pim sparse-mode encapsulation frame-relay ip ospf network point-to-point frame-relay map ip 1.1.16.4 314 broadcast no frame-relay inverse-arp frame-relay lmi-type cisco ! interface FastEthernet0/1 ip address 1.1.10.3 255.255.255.0 duplex auto speed auto ! interface Serial0/1 no ip address encapsulation frame-relay no frame-relay inverse-arp ! interface Serial0/1.1 multipoint ip address 1.1.12.3 255.255.255.248 ip pim nbma-mode ip pim sparse-mode ip ospf message-digest-key 1 md5 cisco ip ospf hello-interval 5 ip ospf priority 255 frame-relay map ip 1.1.12.2 302 broadcast frame-relay map ip 1.1.12.5 305 broadcast ! interface Dialer0 ip address 1.1.32.34 255.255.255.252 encapsulation ppp ip ospf demand-circuit load-interval 30 dialer pool 1 dialer string 34121735 dialer load-threshold 51 outbound no peer neighbor-route no cdp enable ppp authentication chap ppp multilink ! router ospf 64 router-id 1.1.3.3 log-adjacency-changes area 0 authentication message-digest area 2 virtual-link 1.1.4.4 message-digest-key 1 md5 cisco area 11 range 1.1.8.0 255.255.252.0 area 11 virtual-link 1.1.1.1 message-digest-key 1 md5 cisco passive-interface Tunnel0 network 1.1.3.3 0.0.0.0 area 11 network 1.1.9.3 0.0.0.0 area 11 network 1.1.10.3 0.0.0.0 area 11 network 1.1.12.3 0.0.0.0 area 0 network 1.1.16.3 0.0.0.0 area 2 network 1.1.32.34 0.0.0.0 area 0 neighbor 1.1.12.5 poll-interval 6 neighbor 1.1.12.2 poll-interval 6 ! ip classless ip http server ip pim rp-address 1.1.4.4 ! ! logging history debugging logging trap debugging dialer-list 1 protocol ip permit ! call rsvp-sync ! ! mgcp profile default ! dial-peer cor custom ! ! ! ! ! line con 0 privilege level 15 logging synchronous line aux 0 line vty 0 4 login ! ntp authentication-key 1 md5 070C285F4D06 7 ntp authenticate ntp source Loopback0 ntp master 2 ! end
四、解决步骤： 在R3上改动配置，相关方面的配置如下，就可实现目标： inter t0 ip unnumber lo0 tunnel source lo0 tunnel destination 1.1.1.1 ip pim dense-mode exit
ip mroute 1.1.15.0 255.255.255.0 t0
（stub 端）R1上面的相关配置如下:
inter t0 ip unnumber lo0 tunnel source lo0 tunnel destination 1.1.3.3 ip pim dense-mode exit
inter e0 ip addr 1.1.15.1 255.255.255.0 ip pim dense-mode exit
ip mroute 150.100.2.0 255.255.255.0 t0 (或者使用ip mroute 0.0.0.0 0.0.0.0 t0)
