From: ying chang (ying_c@xxxxxxxxxxx)
Date: Sun May 12 2002 - 13:51:39 GMT-3
What I should say is the problem is similar to the eigrp/ospf redistribution
problem that was discussed a few days ago. Routes in ospf 100 is always
preferred over ospf 200 in r2, extenal routes in ospf 200 will not be
redistributed unless they are not in ospf 100. The last question in Doyle
I's chapter 11 is the one you can refer to. Check out last few days archive
regarding that question, it should give you some better ideas what I'm
trying to say.
>From: "ying chang" <ying_c@hotmail.com>
>Reply-To: "ying chang" <ying_c@hotmail.com>
>To: Sing-Yu.Hung@pccw.com, ccielab@groupstudy.com
>Subject: Re: ospf into rip
>Date: Sun, 12 May 2002 10:55:37 -0400
>
>78.0/24 is in ospf 100 not in ospf 200. I think you are getting into
>something similar to 3-way redistribution. If all you want is to see
>78.0/24, all you have to do is redistribute it into igrp.
>
>
>>From: "Hung, Sing-Yu" <Sing-Yu.Hung@pccw.com>
>>Reply-To: "Hung, Sing-Yu" <Sing-Yu.Hung@pccw.com>
>>To: ccielab@groupstudy.com
>>Subject: ospf into rip
>>Date: Sun, 12 May 2002 20:05:54 +0800
>>
>>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
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:58:55 GMT-3