Re: OSPF type-7 routes

From: Erik Belz (ebelz@xxxxxxxxxx)
Date: Sun Apr 30 2000 - 16:33:41 GMT-3


   
It works...

Try reloading your ABR between the NSSA area and the other area...
also make sure a routers in that area agree on NSSA (config it on each router i
n the area)

I have this config

r1---------------------r5--------------------------r7

r1 and r5 are connected via NSSA r5 and r7 are area 0
I am redistributing external at r1..

R1 config
****************************************************
!
router ospf 1
 redistribute connected metric-type 1 subnets
 network 172.16.1.0 0.0.0.7 area 1
 network 10.100.1.16 0.0.0.3 area 1
 neighbor 172.16.1.3 priority 1
 neighbor 172.16.1.1 priority 1
 area 1 nssa
!

R5 config
*****************************************************
!
router ospf 1
 network 130.0.0.0 0.0.255.255 area 0
 network 5.0.0.0 0.255.255.255 area 0
 network 172.16.1.0 0.0.0.7 area 1
 neighbor 172.16.1.3 priority 1
 neighbor 172.16.1.2 priority 1
 area 1 nssa
 ospf log-adjacency-changes
!

r5#sh ip ro
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

C 5.0.0.0/8 is directly connected, Loopback0
     7.0.0.0/32 is subnetted, 1 subnets
O 7.7.7.7 [110/11] via 130.0.0.7, 00:08:43, Ethernet0
     8.0.0.0/32 is subnetted, 1 subnets
O 8.8.8.8 [110/11] via 130.0.0.8, 00:08:43, Ethernet0
     9.0.0.0/25 is subnetted, 1 subnets
O N1 9.2.44.0 [110/85] via 172.16.1.2, 00:06:31, Serial0
     10.0.0.0/8 is variably subnetted, 3 subnets, 3 masks
C 10.10.10.0/24 is directly connected, BRI0
O 10.100.1.17/32 [110/65] via 172.16.1.2, 00:06:31, Serial0
O N1 10.100.1.16/30 [110/85] via 172.16.1.2, 00:06:31, Serial0
O N1 17.0.0.0/8 [110/85] via 172.16.1.2, 00:06:31, Serial0
O N1 205.227.55.0/24 [110/85] via 172.16.1.2, 00:06:31, Serial0
     100.0.0.0/24 is subnetted, 1 subnets
C 100.100.100.0 is directly connected, Loopback5
O N1 192.168.1.0/24 [110/85] via 172.16.1.2, 00:06:32, Serial0
O N1 192.168.2.0/24 [110/85] via 172.16.1.2, 00:06:32, Serial0
     110.0.0.0/25 is subnetted, 1 subnets
O N1 110.113.1.0 [110/85] via 172.16.1.2, 00:06:32, Serial0
O N1 131.1.0.0/16 [110/85] via 172.16.1.2, 00:06:32, Serial0
C 130.0.0.0/16 is directly connected, Ethernet0
     161.22.0.0/24 is subnetted, 1 subnets
O N1 161.22.14.0 [110/85] via 172.16.1.2, 00:06:32, Serial0
     172.16.0.0/29 is subnetted, 1 subnets
C 172.16.1.0 is directly connected, Serial0
O N1 222.14.33.0/24 [110/85] via 172.16.1.2, 00:06:33, Serial0
O N1 210.222.0.0/20 [110/85] via 172.16.1.2, 00:06:33, Serial0
O N1 192.9.0.0/16 [110/85] via 172.16.1.2, 00:06:33, Serial0

R7 config
******************************************************
!
router ospf 1
 network 7.0.0.0 0.255.255.255 area 0
 network 130.0.0.0 0.0.255.255 area 0
!

r7#sh ip ro
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

O E1 17.0.0.0/8 [110/95] via 130.0.0.5, 00:07:42, FastEthernet0/0
O E1 222.14.33.0/24 [110/95] via 130.0.0.5, 00:07:42, FastEthernet0/0
O E1 205.227.55.0/24 [110/95] via 130.0.0.5, 00:07:42, FastEthernet0/0
     5.0.0.0/32 is subnetted, 1 subnets
O 5.5.5.5 [110/11] via 130.0.0.5, 00:09:37, FastEthernet0/0
     172.16.0.0/29 is subnetted, 1 subnets
O IA 172.16.1.0 [110/74] via 130.0.0.5, 00:07:48, FastEthernet0/0
C 7.0.0.0/8 is directly connected, Loopback0
     8.0.0.0/32 is subnetted, 1 subnets
O 8.8.8.8 [110/11] via 130.0.0.8, 00:09:38, FastEthernet0/0
     110.0.0.0/25 is subnetted, 1 subnets
O E1 110.113.1.0 [110/95] via 130.0.0.5, 00:07:42, FastEthernet0/0
     9.0.0.0/25 is subnetted, 1 subnets
O E1 9.2.44.0 [110/95] via 130.0.0.5, 00:07:43, FastEthernet0/0
C 130.0.0.0/16 is directly connected, FastEthernet0/0
     10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
O IA 10.100.1.17/32 [110/75] via 130.0.0.5, 00:07:44, FastEthernet0/0
O E1 10.100.1.16/30 [110/95] via 130.0.0.5, 00:07:43, FastEthernet0/0
     161.22.0.0/24 is subnetted, 1 subnets
O E1 161.22.14.0 [110/95] via 130.0.0.5, 00:07:43, FastEthernet0/0
O E1 131.1.0.0/16 [110/95] via 130.0.0.5, 00:07:43, FastEthernet0/0
O E1 192.168.1.0/24 [110/95] via 130.0.0.5, 00:07:44, FastEthernet0/0
O E1 192.168.2.0/24 [110/95] via 130.0.0.5, 00:07:44, FastEthernet0/0
O E1 192.9.0.0/16 [110/95] via 130.0.0.5, 00:07:44, FastEthernet0/0
O E1 210.222.0.0/20 [110/95] via 130.0.0.5, 00:07:44, FastEthernet0/0

Erik C Belz
Senior systems engineer
Manchester Equipment Co
(212)560-5459

>>> "Lee, Phillip (CAP, ITS, CA)" <Phillip.Lee@gects.ge.com> 04/30/2000 12:22:3
8 PM >>>
When I inject an external route to a OSPF NSSA router, only the NSSA routers
are seeing the route. The non-NSSA routers are not getting the external
route. Does anyone know why this is happening ? I thought the NSSA ASBR
would have converted the type-7 route into a type-5 route and add it to the
ospf table. Not the case here. Any insight would be much appreciated.

Thanks,
Phillip



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