I am trying to find the reason why R1 doesn't have the default-route, propagated and generated by my Internet-PAT-Router, in his routing-table. The weird thing is, that R2 actually has an entry for the default-route!
I am sorry if it is a really weird simple error which is easy to find, but I just couldn't find it (even after long googling and comparing R1 and R2).
I am able to ping like this:
PC -----> R1
R1 -----> ABR
PC --!--> ABR
R1 --!--> Internet (I have simulated the Internet with a simple webserver)
R2 -----> Internet
Router in the area down below the area 45 -----> Internet
Gigabit-Interfaces are for the LAN-Networks which are configured as passive-interface.
Here's the overview over my network:
Configuration of R1:
en
conf t
no ip domain-lookup
ipv6 unicast-routing
int loopback 0
ip address 1.1.1.1 255.255.255.255
exit
ipv6 router ospf 1
router-id 1.1.1.1
auto-cost reference-bandwidth 100000
passive-interface g0/0
area 45 range 2001:db8:18:4565::/56
exit
router ospf 1
auto-cost reference-bandwidth 100000
passive-interface g0/0
area 45 range 10.45.65.0 255.255.255.0
exit
int s0/0/0
ip address 10.45.0.6 255.255.255.252
ipv6 address 2001:db8:18:4502::2/64
ipv6 ospf 1 area 45
ip ospf 1 area 45
ip ospf hello-interval 3
ipv6 ospf hello-interval 3
no sh
int g0/0
ip address 10.45.65.1 255.255.255.0
ipv6 add 2001:db8:18:4565::1/64
no sh
exit
access-list 100 deny ip any host 224.0.0.5
access-list 100 deny ip any host 244.0.0.6
access-list 100 permit ip any any
int g0/0
ip access-group 100 in
exit
Configuration of R2:
en
conf t
no ip domain-lookup
ipv6 unicast-routing
int loopback 0
ip address 1.1.1.1 255.255.255.255
exit
ipv6 router ospf 1
router-id 1.1.1.1
auto-cost reference-bandwidth 100000
exit
router ospf 1
auto-cost reference-bandwidth 100000
network 10.45.0.0 0.0.0.3 area 45
exit
int s0/0/0
ip address 10.45.0.2 255.255.255.252
ipv6 address 2001:db8:18:4501::2/64
ipv6 ospf 1 area 45
ip ospf hello-interval 3
ipv6 ospf hello-interval 3
no sh
int g0/0
ip address 10.45.64.1 255.255.255.0
ipv6 add 2001:db8:18:4564::1/64
ipv6 ospf 1 area 45
ip ospf hello-interval 3
ipv6 ospf hello-interval 3
no sh
exit
exit
Configuration of the ABR:
en
conf t
no ip domain-lookup
ipv6 unicast-routing
int loopback 0
ip address 2.2.1.1 255.255.255.255
exit
ipv6 router ospf 1
area 45 range 2001:db8:18:4500::/56
auto-cost reference-bandwidth 100000
router-id 2.2.1.1
exit
router ospf 1
area 45 range 10.45.0.0 255.255.0.0
area 0 range 10.0.0.0 255.255.0.0
auto-cost reference-bandwidth 100000
network 10.45.0.0 0.0.0.255 area 45
network 10.0.0.0 0.0.0.255 area 0
int s0/1/0
ip add 10.45.0.1 255.255.255.252
ipv6 add 2001:db8:18:4501::1/64
ipv6 ospf 1 area 45
ip ospf hello-interval 3
ipv6 ospf hello-interval 3
no sh
int s0/1/1
ip add 10.45.0.5 255.255.255.252
ipv6 add 2001:db8:18:4502::1/64
ipv6 ospf 1 area 45
ip ospf hello-interval 3
ipv6 ospf hello-interval 3
no sh
int s0/0/0
ip add 10.0.0.2 255.255.255.252
ipv6 add 2001:db8:18:0001::2/64
ipv6 ospf 1 area 0
ip ospf hello-interval 3
ipv6 ospf hello-interval 3
no sh
int s0/0/1
ip add 10.0.0.6 255.255.255.252
ipv6 add 2001:db8:18:0002::2/64
ipv6 ospf 1 area 0
ip ospf hello-interval 3
ipv6 ospf hello-interval 3
no sh
exit
This is the "show ip ospf int"-command on the ABR
Serial0/1/0 is up, line protocol is up
Internet address is 10.45.0.1/30, Area 45
Process ID 1, Router ID 2.2.1.1, Network Type POINT-TO-POINT, Cost: 64
Transmit Delay is 1 sec, State POINT-TO-POINT, Priority 0
No designated router on this network
No backup designated router on this network
Timer intervals configured, Hello 3, Dead 40, Wait 40, Retransmit 5
Hello due in 00:00:02
Index 1/1, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 1, maximum is 1
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 1 , Adjacent neighbor count is 1
Adjacent with neighbor 1.1.1.1
Suppress hello for 0 neighbor(s)
Serial0/1/1 is up, line protocol is up
Internet address is 10.45.0.5/30, Area 45
Process ID 1, Router ID 2.2.1.1, Network Type POINT-TO-POINT, Cost: 64
Transmit Delay is 1 sec, State POINT-TO-POINT, Priority 0
No designated router on this network
No backup designated router on this network
Timer intervals configured, Hello 3, Dead 40, Wait 40, Retransmit 5
Hello due in 00:00:02
Index 2/2, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 1, maximum is 1
Last flood scan time is 0 msec, maximum is 0 msec
Suppress hello for 0 neighbor(s)
Serial0/0/0 is up, line protocol is up
Internet address is 10.0.0.2/30, Area 0
Process ID 1, Router ID 2.2.1.1, Network Type POINT-TO-POINT, Cost: 64
Transmit Delay is 1 sec, State POINT-TO-POINT, Priority 0
No designated router on this network
No backup designated router on this network
Timer intervals configured, Hello 3, Dead 40, Wait 40, Retransmit 5
Hello due in 00:00:02
Index 3/3, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 1, maximum is 1
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 1 , Adjacent neighbor count is 1
Adjacent with neighbor 3.3.3.3
Suppress hello for 0 neighbor(s)
Serial0/0/1 is up, line protocol is up
Internet address is 10.0.0.6/30, Area 0
Process ID 1, Router ID 2.2.1.1, Network Type POINT-TO-POINT, Cost: 64
Transmit Delay is 1 sec, State POINT-TO-POINT, Priority 0
No designated router on this network
No backup designated router on this network
Timer intervals configured, Hello 3, Dead 40, Wait 40, Retransmit 5
Hello due in 00:00:02
Index 4/4, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 1, maximum is 1
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 1 , Adjacent neighbor count is 1
Adjacent with neighbor 4.4.4.4
Suppress hello for 0 neighbor(s)
And the command on R1 doesn't show anything.