RE: ospf into rip

From: Krucker, Louis (louis.krucker@xxxxxxxxxxx)
Date: Sun May 12 2002 - 11:45:07 GMT-3


   
Hi Bradford,

Can you try the config below on R2, i have a similar lab
with ospf/igrp and it works.
Summary you can use to summarize the rip domain into ospf
but not ospf domain back into rip.

Let me know the result please.

regards
Louis

 R2 Config:
!
router ospf 100
 network 150.20.25.0 0.0.0.15 area 400
 network 150.20.100.0 0.0.0.31 area 0
 neighbor 150.20.100.6
 neighbor 150.20.100.5
 neighbor 150.20.100.4
 area 400 range 150.20.50.0 255.255.255.0
 area 0 range 150.20.25.0 255.255.255.0
!

!
router rip
 redistribute ospf 100 metric 3
 network 150.20.0.0

-----Original Message-----
From: Hung, Sing-Yu
To: ccielab@groupstudy.com
Sent: 12.05.2002 14:05
Subject: ospf into rip

Dear,

        Here is my config:

        
r1---------rip(150.20.12.0/24)----------------r2------------ospf(150.20.
100.
0/27)---------------------r5----------------ospf(15.20.50.0/26)---------
---r
7---------ospf(150.20.78.0/24)

r2#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

     188.5.0.0/24 is subnetted, 1 subnets
O E2 188.5.254.0 [110/20] via 150.20.100.5, 00:00:22, Serial0
C 193.100.5.0/24 is directly connected, Loopback2
R 150.50.0.0/16 [120/1] via 150.20.12.1, 00:00:02, Ethernet0
C 193.100.2.0/24 is directly connected, Loopback1
     150.10.0.0/32 is subnetted, 2 subnets
O E2 150.10.5.5 [110/20] via 150.20.100.5, 00:00:22, Serial0
C 150.10.2.2 is directly connected, Loopback0
     150.20.0.0/16 is variably subnetted, 8 subnets, 4 masks
C 150.20.12.0/24 is directly connected, Ethernet0
O 150.20.25.0/24 is a summary, 00:06:44, Null0
C 150.20.25.0/28 is directly connected, Dialer0
O IA 150.20.40.0/24 [110/74] via 150.20.100.4, 00:00:23, Serial0
O 150.20.50.0/24 is a summary, 00:06:44, Null0
O IA 150.20.50.0/26 [110/74] via 150.20.100.6, 00:00:23, Serial0
                       [110/74] via 150.20.100.5, 00:00:23, Serial0
O IA 150.20.78.0/24 [110/138] via 150.20.100.5, 00:00:23, Serial0

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

     136.136.0.0/24 is subnetted, 1 subnets
C 136.136.100.0 is directly connected, Ethernet3/0
     150.50.0.0/24 is subnetted, 1 subnets
C 150.50.200.0 is directly connected, FastEthernet0/0
     150.10.0.0/32 is subnetted, 1 subnets
C 150.10.1.1 is directly connected, Loopback0
     150.20.0.0/24 is subnetted, 3 subnets
C 150.20.12.0 is directly connected, Ethernet3/1
R 150.20.25.0 [120/3] via 150.20.12.2, 00:00:15, Ethernet3/1
R 150.20.50.0 [120/3] via 150.20.12.2, 00:00:15, Ethernet3/1
r1#

        The question is I can red ospf/27 network into rip/24 by below:
1. OSPF
=======
At R1, create a new ospf process(ospf_2),redsitribute the orginal
ospf(subnets) into ospf_2, address summary at ospf_2 on those non /24
into
/24. At rip, redistribute ispf_2 into rip.

However, Why 150.20.78.0/24 can't be red into rip as it is /24 network?

R2 Config:
!
router ospf 100
 network 150.20.25.0 0.0.0.15 area 400
 network 150.20.100.0 0.0.0.31 area 0
 neighbor 150.20.100.6
 neighbor 150.20.100.5
 neighbor 150.20.100.4
!
router ospf 200
 summary-address 150.20.50.0 255.255.255.0
 summary-address 150.20.25.0 255.255.255.0
 redistribute ospf 100 metric 120 subnets
!
router rip
 redistribute ospf 200 metric 3
 network 150.20.0.0
!

Bradford Hung

> Pacific Century CyberWorks
> Tel: 288 33125



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