RE: a nssa no-redis problem

From: Sam.MicroGate@usa.telekom.de
Date: Tue Oct 22 2002 - 16:29:08 GMT-3


Hello,

Try to run RIP between R3 and R4 not between R2 and R4. Then redistribute
RIP into ospf area 1 (configured as nssa area) Check the routing table at
R2, you find no E1 and E2 route. In this case R3 is the ASBR and R2 is the
ABR.

However, in your case R2 is ABR and the ASBR in the same time. And what is
happening is R2 (as an ABR) is injecting the E1 and E2 routes into area 1.

Sam

-----Original Message-----
From: chenyan [mailto:chenyan@deeptht.com.cn]
Sent: Tuesday, October 22, 2002 1:32 PM
To: ccielab
Subject: a nssa no-redis problem

hi,guys

R1---------------------R2--------------------------R3
       (area0) | (area1)
                       |
                       |
                       |
                      (RIP)
                       R4
 

R1:
interface Serial1
 ip address 172.28.2.8 255.255.255.0
 no ip directed-broadcast
!
router ospf 1
 network 172.26.4.1 0.0.0.0 area 0
 network 172.28.2.8 0.0.0.0 area 0

R2:
interface Serial0/0.1 point-to-point
 ip address 172.28.1.6 255.255.255.240
 ip ospf network point-to-point
 frame-relay interface-dlci 614
!
interface Serial0/0.2 point-to-point
 ip address 62.5.1.6 255.255.255.128
 frame-relay interface-dlci 603
!
interface Serial0/0.3 point-to-point
 ip address 62.8.1.6 255.255.255.128
 frame-relay interface-dlci 605
!
interface Ethernet0/1
 no ip address
 shutdown
!
interface Serial0/1
 ip address 172.28.2.6 255.255.255.0
 clockrate 72000
!
router ospf 1
 log-adjacency-changes
 area 1 nssa no-redistribution no-summary
 redistribute rip subnets
 network 172.28.1.6 0.0.0.0 area 1
 network 172.28.2.6 0.0.0.0 area 0
!
router rip
 timers basic 5 15 15 30
 network 62.0.0.0

R3:
interface Serial0
 ip address 172.28.1.14 255.255.255.240
 no ip directed-broadcast
 encapsulation frame-relay
 no ip route-cache
 ip ospf network point-to-point
 no ip mroute-cache
 frame-relay interface-dlci 416
!
!
router ospf 1
 network 172.28.1.14 0.0.0.0 area 1
 network 172.28.3.14 0.0.0.0 area 1
 area 1 nssa no-redistribution no-summary

But the routing table od R3:

     200.200.200.0/24 is variably subnetted, 2 subnets, 2 masks
C 200.200.200.91/32 is directly connected, Async9
C 200.200.200.0/24 is directly connected, Ethernet0
     100.0.0.0/24 is subnetted, 1 subnets
C 100.100.100.0 is directly connected, Loopback0
     172.28.0.0/16 is variably subnetted, 2 subnets, 2 masks
C 172.28.1.0/28 is directly connected, Serial0
C 172.28.3.0/27 is directly connected, Loopback1
     62.0.0.0/25 is subnetted, 2 subnets
O E2 62.8.1.0 [110/20] via 172.28.1.6, 00:31:03, Serial0
O E2 62.5.1.0 [110/20] via 172.28.1.6, 00:31:03, Serial0
O*IA 0.0.0.0/0 [110/65] via 172.28.1.6, 00:31:03, Serial0

the E2 are suppoesd to be dispeard?
WHY?

Thanks



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