OSPF NSSA Problem
Hey guys, shouldn't the 172 network configured on R3 show on R1's routing table?
R1#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, ia - IS-IS inter area * - candidate default, U - per-user static route, o - ODR P - periodic downloaded static route Gateway of last resort is not set 10.0.0.0/8 is variably subnetted, 5 subnets, 2 masks C 10.1.1.0/24 is directly connected, Loopback1 O 10.1.2.1/32 [110/2] via 10.1.12.2, 00:14:10, FastEthernet0/0 O IA 10.1.3.1/32 [110/3] via 10.1.12.2, 00:14:10, FastEthernet0/0 C 10.1.12.0/24 is directly connected, FastEthernet0/0 O IA 10.1.23.0/24 [110/2] via 10.1.12.2, 00:14:10, FastEthernet0/0 R1#
R1#show run Building configuration... Current configuration : 604 bytes ! version 12.2 no service timestamps log datetime msec no service timestamps debug datetime msec no service password-encryption ! hostname R1 ! ! ! ! ! ! ! ! ! ! ip name-server 0.0.0.0 ! ! ! ! ! ! interface Loopback1 ip address 10.1.1.1 255.255.255.0 ! interface FastEthernet0/0 ip address 10.1.12.1 255.255.255.0 duplex auto speed auto ! interface FastEthernet0/1 no ip address duplex auto speed auto shutdown ! router ospf 1 log-adjacency-changes network 10.1.12.0 0.0.0.255 area 0 network 10.1.1.0 0.0.0.255 area 0 ! ip classless ! ! ! ! ! ! ! ! ! line con 0 line vty 0 4 login ! ! ! end R1#show run Building configuration... Current configuration : 604 bytes ! version 12.2 no service timestamps log datetime msec no service timestamps debug datetime msec no service password-encryption ! hostname R1 ! ! ! ! ! ! ! ! ! ! ip name-server 0.0.0.0 ! ! ! ! ! ! interface Loopback1 ip address 10.1.1.1 255.255.255.0 ! interface FastEthernet0/0 ip address 10.1.12.1 255.255.255.0 duplex auto speed auto ! interface FastEthernet0/1 no ip address duplex auto speed auto shutdown ! router ospf 1 log-adjacency-changes network 10.1.12.0 0.0.0.255 area 0 network 10.1.1.0 0.0.0.255 area 0 ! ip classless ! ! ! ! ! ! ! ! ! line con 0 line vty 0 4 login ! ! ! end R2#sho run Building configuration... Current configuration : 643 bytes ! version 12.2 no service timestamps log datetime msec no service timestamps debug datetime msec no service password-encryption ! hostname R2 ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface Loopback2 ip address 10.1.2.1 255.255.255.0 ! interface FastEthernet0/0 ip address 10.1.12.2 255.255.255.0 duplex auto speed auto ! interface FastEthernet0/1 ip address 10.1.23.2 255.255.255.0 duplex auto speed auto ! router ospf 1 log-adjacency-changes area 23 nssa network 10.1.12.0 0.0.0.255 area 0 network 10.1.2.0 0.0.0.255 area 0 network 10.1.23.0 0.0.0.255 area 23 ! ip classless ! ! ! ! ! ! ! ! ! line con 0 line vty 0 4 login ! ! ! end R2#sho run Building configuration... Current configuration : 643 bytes ! version 12.2 no service timestamps log datetime msec no service timestamps debug datetime msec no service password-encryption ! hostname R2 ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface Loopback2 ip address 10.1.2.1 255.255.255.0 ! interface FastEthernet0/0 ip address 10.1.12.2 255.255.255.0 duplex auto speed auto ! interface FastEthernet0/1 ip address 10.1.23.2 255.255.255.0 duplex auto speed auto ! router ospf 1 log-adjacency-changes area 23 nssa network 10.1.12.0 0.0.0.255 area 0 network 10.1.2.0 0.0.0.255 area 0 network 10.1.23.0 0.0.0.255 area 23 ! ip classless ! ! ! ! ! ! ! ! ! line con 0 line vty 0 4 login ! ! ! end R3#show run Building configuration... Current configuration : 715 bytes ! version 12.2 no service timestamps log datetime msec no service timestamps debug datetime msec no service password-encryption ! hostname R3 ! ! ! ! ! ! ! ! ! ! ip name-server 0.0.0.0 ! ! ! ! ! ! interface Loopback3 ip address 10.1.3.1 255.255.255.0 ! interface Loopback20 ip address 172.20.200.1 255.255.255.0 ! interface FastEthernet0/0 no ip address duplex auto speed auto shutdown ! interface FastEthernet0/1 ip address 10.1.23.3 255.255.255.0 duplex auto speed auto ! router ospf 1 log-adjacency-changes area 23 nssa redistribute connected subnets network 10.1.23.0 0.0.0.255 area 23 network 10.1.3.0 0.0.0.255 area 23 ! ip classless ! ! ! ! ! ! ! ! ! line con 0 line vty 0 4 login ! ! ! end
-Daniel
Comments
For the record the area 23 nssa needed the "no-summ" on the the, since it' can't summerize the 172.x.x.x in to the 10.x.x.x....
R1(config)#do sh ip rou
Codes: C - connected, S - static, 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
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
172.20.0.0/24 is subnetted, 1 subnets
O E2 172.20.200.0 [110/20] via 10.1.12.2, 00:00:04, FastEthernet0/0
10.0.0.0/8 is variably subnetted, 5 subnets, 2 masks
C 10.1.12.0/24 is directly connected, FastEthernet0/0
O 10.1.2.1/32 [110/2] via 10.1.12.2, 00:00:04, FastEthernet0/0
O IA 10.1.3.1/32 [110/3] via 10.1.12.2, 00:00:04, FastEthernet0/0
C 10.1.1.0/24 is directly connected, Loopback1
O IA 10.1.23.0/24 [110/2] via 10.1.12.2, 00:00:04, FastEthernet0/0
R2#sh ip rou
Codes: C - connected, S - static, 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
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
172.20.0.0/24 is subnetted, 1 subnets
O N2 172.20.200.0 [110/20] via 10.1.23.3, 00:00:20, FastEthernet0/1
10.0.0.0/8 is variably subnetted, 5 subnets, 2 masks
C 10.1.12.0/24 is directly connected, FastEthernet0/0
O 10.1.3.1/32 [110/2] via 10.1.23.3, 00:00:20, FastEthernet0/1
C 10.1.2.0/24 is directly connected, Loopback2
O 10.1.1.1/32 [110/2] via 10.1.12.1, 00:00:10, FastEthernet0/0
C 10.1.23.0/24 is directly connected, FastEthernet0/1
R3(config)#do sh ip rou
Codes: C - connected, S - static, 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
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
172.20.0.0/24 is subnetted, 1 subnets
C 172.20.200.0 is directly connected, Loopback20
10.0.0.0/8 is variably subnetted, 5 subnets, 2 masks
O IA 10.1.12.0/24 [110/2] via 10.1.23.2, 00:00:17, FastEthernet0/1
C 10.1.3.0/24 is directly connected, Loopback3
O IA 10.1.2.1/32 [110/2] via 10.1.23.2, 00:00:17, FastEthernet0/1
O IA 10.1.1.1/32 [110/3] via 10.1.23.2, 00:00:17, FastEthernet0/1
C 10.1.23.0/24 is directly connected, FastEthernet0/1
No-summary on R2 would just turn area 23 into a NSSA totally stubby area.I love this terminology!
But from your output it seems like even without the no-summ on there it still distributed the 172 network, and summerized it?
I think you are confused what no-summary means. All it means is no LSA-3 will be going INTO the area it is not summarizing anything. In order to summarize you need area range command or for external it is summary-address
Packet tracer for CCNP stuff? No way to use dynamips/GNS? Packet tracer was shifty enough covering some of the late CCNA topics. I can't imagine trying to use it for CCNP studies.
CCNP, 70-620 Vista 70-290 Server 2003
Packet Tracer activities and ramblings on my blog:
http://www.sbntech.info
1ghz laptop, GNS3 doesn't have a chance
I dont think its a mistake you just have to keep on working on it and it will all make sense
I second this. Packet tracer does some funky stuff sometimes.