here is the Router configuration
r1# sh run
no ip domain lookup
!
ipv6 unicast-routing
!
!
!
interface Tunnel0
no ip address
ipv6 address 5001::6001/120
ipv6 ospf 100 area 0
tunnel source Serial2/0
tunnel destination 200.1.1.1
tunnel mode ipv6ip
!
interface Loopback0
no ip address
ipv6 address 2001::3001/121
ipv6 ospf 100 area 0
!
interface FastEthernet0/0
no ip address
shutdown
duplex half
!
interface FastEthernet1/0
ip address 10.1.1.10 255.255.255.0
duplex auto
speed auto
ipv6 enable
ipv6 ospf 100 area 0
!
interface FastEthernet1/1
ip address 20.1.1.30 255.255.255.0
duplex auto
speed auto
ipv6 enable
ipv6 ospf 100 area 0
!
interface Serial2/0
ip address 100.1.1.1 255.255.255.0
encapsulation ppp
serial restart-delay 0
clock rate 64000
ip route 30.1.1.0 255.255.255.0 200.1.1.1
no ip http server
no ip http secure-server
!
!
!
logging alarm informational
!
!
ipv6 router ospf 100
log-adjacency-changes
!
!
!
!
!
r2# sh run
no ip domain lookup
!
ipv6 unicast-routing
!
!
!
!
!
!
interface Tunnel0
no ip address
ipv6 address 5001::2004/120
ipv6 ospf 100 area 0
tunnel source Serial1/0
tunnel destination 212.1.1.1
tunnel mode ipv6ip
!
interface Loopback0
no ip address
ipv6 address 8001::1001/12
ipv6 ospf 100 area 0
!
interface Serial1/0
ip address 212.1.1.2 255.255.255.0
serial restart-delay 0
!
interface Serial1/1
no ip address
shutdown
serial restart-delay 0
!
interface FastEthernet2/0
ip address 50.1.1.1 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet2/1
no ip address
shutdown
duplex auto
speed auto
!
ip route 40.1.1.0 255.255.255.0 Serial1/0
no ip http server
no ip http secure-server
!
!
!
logging alarm informational
!
!
ipv6 router ospf 100
router-id 3.3.3.3
log-adjacency-changes
!
!
!
!
!
r3# sh run
ipv6 unicast-routing
!
!
!
!
!
interface Tunnel0
no ip address
ipv6 address 5001::2003/120
ipv6 ospf 100 area 0
tunnel source Serial1/1
tunnel destination 212.1.1.2
tunnel mode ipv6ip
!
interface Loopback0
no ip address
ipv6 address 3001::7001/112
ipv6 ospf 100 area 0
!
interface Serial1/0
no ip address
ipv6 address 2012::7002/120
ipv6 ospf 100 area 0
serial restart-delay 0
!
interface Serial1/1
ip address 212.1.1.1 255.255.255.0
serial restart-delay 0
clock rate 64000
!interface FastEthernet2/0
ip address 40.1.1.1 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet2/1
no ip address
shutdown
duplex auto
speed auto
!
ip route 50.1.1.0 255.255.255.0 Serial1/1
no ip http server
no ip http secure-server
!
!
!
logging alarm informational
!
!
ipv6 router ospf 100
router-id 2.2.2.2
log-adjacency-changes
!
!
!
!
!
control-plane
ipv6 unicast-routing
!
!
!
!
!
interface Tunnel0
no ip address
ipv6 address 5001::2003/120
ipv6 ospf 100 area 0
tunnel source Serial1/1
tunnel destination 212.1.1.2
tunnel mode ipv6ip
!
interface Loopback0
no ip address
ipv6 address 3001::7001/112
ipv6 ospf 100 area 0
!
interface Serial1/0
no ip address
ipv6 address 2012::7002/120
ipv6 ospf 100 area 0
serial restart-delay 0
!
interface Serial1/1
ip address 212.1.1.1 255.255.255.0
serial restart-delay 0
clock rate 64000
!interface FastEthernet2/0
ip address 40.1.1.1 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet2/1
no ip address
shutdown
duplex auto
speed auto
!
ip route 50.1.1.0 255.255.255.0 Serial1/1
no ip http server
no ip http secure-server
!
!
!
logging alarm informational
!
!
ipv6 router ospf 100
router-id 2.2.2.2
log-adjacency-changes
!
!
!
!
!
control-plane
r4# sh run
no ip domain lookup
!
ipv6 unicast-routing
!
!
!
!
!
!
!
interface Loopback0
no ip address
ipv6 address 8001::1001/12
ipv6 ospf 100 area 0
!
interface FastEthernet0/0
no ip address
shutdown
duplex half
!
interface Serial1/0
ip address 212.1.1.2 255.255.255.0
serial restart-delay 0
!
!
interface FastEthernet2/0
ip address 50.1.1.1 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet2/1
no ip address
shutdown
duplex auto
speed auto
!
ip route 40.1.1.0 255.255.255.0 Serial1/0
no ip http server
no ip http secure-server
!
!
!
logging alarm informational
!
!
ipv6 router ospf 100
router-id 3.3.3.3
log-adjacency-changes
!
!
!
!
!
control-plane
!
!
!
!
!
!
gatekeeper
shutdown
!
Now i'm able to ping loopback of r4,r3,r2 with r1 & vice versa.c1 can ping c2,c3 but not c4 & c5,similarly c4 can ping c5 but not c1,c2,c3.
Also c3 is not pinging c4.So my question is what to do so that i can ping c1 with c4,c5.
plz help!!
