From: Igor Manassypov (imanassypov@rogers.com)
Date: Tue Aug 12 2008 - 09:08:45 ART
under rip I am using a 'neighbor' command for unicast-updating...
Hong Chan <howard.chan34@gmail.com> wrote: oh, I miss that and through it is another "network" statement
2008/8/12 Huan Pham
> He has neighbor statement for RIP, mate :-)
>
> ------------------------------
> *From:* Hong Chan [mailto:howard.chan34@gmail.com]
> *Sent:* Tuesday, 12 August 2008 4:00 PM
> *To:* Igor Manassypov
> *Cc:* Huan Pham; ccielab@groupstudy.com
> *Subject:* Re: ospf->rip redistribution filtering with RR
>
> Still cannot figure out the problem.
> I suggest you to use the route-map to set the metric for the OSPF->RIP
> route(s), eg., set metric 5, then see if the route-map leaks route or not.
> Moreover, I see the "passive-interface default" but I don't see any "no
> passive-interface ex/x" under router rip. Is that normal to get the route
> update from redistribution?
>
> 2008/8/12 Igor Manassypov
>
>> Here it goes, its a bit long but simple. I realize there are other options
>> for accomplishing this, however I am puzzled why this setup is not working
>> as expected. Out of curiosity, on a different testbench I setup a mirrored
>> route-map from rip to ospf redistribution allowing just the summary, and
>> that worked perfectly. I am wondering if RIP is behaving differently with
>> route-maps?!!
>>
>> Router R1 is connected to BB1. R1 is running both ospf and rip, and BB1 is
>> running only rip.
>>
>> Here is the config on R1:
>>
>> router rip
>> version 2
>> redistribute ospf 77 metric 1 route-map OSPF->RIP
>> passive-interface default
>> network 150.1.0.0
>> neighbor 150.1.1.254
>> no auto-summary
>>
>> router ospf 77
>> router-id 77.77.1.1
>> log-adjacency-changes
>> area 167 virtual-link 77.77.7.7
>> redistribute rip subnets route-map RIP->OSPF
>> network 77.77.1.1 0.0.0.0 area 1
>> network 77.77.12.1 0.0.0.0 area 1
>> network 77.77.17.1 0.0.0.0 area 167
>> network 77.77.21.1 0.0.0.0 area 1
>> neighbor 77.77.21.2
>> neighbor 77.77.12.2
>>
>> ip prefix-list SUMMARY seq 5 permit 77.0.0.0/8
>> ip prefix-list SUMMARY seq 10 deny 0.0.0.0/0 le 32
>> route-map OSPF->RIP permit 10
>> match ip address prefix-list SUMMARY
>> route-map OSPF->RIP deny 20
>>
>> R1#sh ip route
>> 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
>>
>> 77.0.0.0/8 is variably subnetted, 20 subnets, 3 masks
>> C 77.77.1.0/24 is directly connected, Loopback0
>> O IA 77.77.3.0/24 [110/76] via 77.77.17.7, 04:53:48, Ethernet0/0
>> O IA 77.77.4.0/24 [110/13] via 77.77.17.7, 04:53:48, Ethernet0/0
>> O IA 77.77.5.0/24 [110/13] via 77.77.17.7, 04:53:48, Ethernet0/0
>> O 77.77.6.0/24 [110/12] via 77.77.17.7, 04:53:48, Ethernet0/0
>> O 77.77.7.0/24 [110/11] via 77.77.17.7, 04:53:48, Ethernet0/0
>> O 77.77.8.0/24 [110/12] via 77.77.17.7, 04:53:48, Ethernet0/0
>> O 77.77.9.0/24 [110/12] via 77.77.17.7, 04:53:48, Ethernet0/0
>> O 77.77.10.0/24 [110/12] via 77.77.17.7, 04:53:48, Ethernet0/0
>> C 77.77.12.0/30 is directly connected, Serial1/0
>> C 77.77.17.0/24 is directly connected, Ethernet0/0
>> C 77.77.21.0/30 is directly connected, Serial1/1
>> O IA 77.77.28.0/24 [110/12] via 77.77.17.7, 04:53:49, Ethernet0/0
>> O 77.77.33.0/24 [110/11] via 77.77.17.7, 04:53:49, Ethernet0/0
>> O IA 77.77.36.0/24 [110/75] via 77.77.17.7, 04:53:49, Ethernet0/0
>> O 77.77.44.0/24 [110/11] via 77.77.17.7, 04:53:49, Ethernet0/0
>> O IA 77.77.48.0/24 [110/12] via 77.77.17.7, 04:53:49, Ethernet0/0
>> O IA 77.77.58.0/24 [110/12] via 77.77.17.7, 04:53:49, Ethernet0/0
>> O 77.77.67.0/24 [110/11] via 77.77.17.7, 04:53:49, Ethernet0/0
>> O IA 77.0.0.0/8 [110/11] via 77.77.17.7, 04:53:49, Ethernet0/0
>> R 199.172.0.0/24 [120/1] via 150.1.1.254, 00:00:06, Ethernet0/1
>> 150.100.0.0/24 is subnetted, 1 subnets
>> R 150.100.1.0 [120/1] via 150.1.1.254, 00:00:06, Ethernet0/1
>> 150.1.0.0/24 is subnetted, 1 subnets
>> C 150.1.1.0 is directly connected, Ethernet0/1
>> 150.250.0.0/24 is subnetted, 1 subnets
>> R 150.250.1.0 [120/1] via 150.1.1.254, 00:00:06, Ethernet0/1
>> 150.200.0.0/24 is subnetted, 1 subnets
>> R 150.200.1.0 [120/1] via 150.1.1.254, 00:00:06, Ethernet0/1
>>
>>
>> BB1#sh ip route rip
>> 77.0.0.0/8 is variably subnetted, 20 subnets, 3 masks
>> R 77.77.1.0/24 [120/1] via 150.1.1.77, 00:00:01, Ethernet0/0
>> R 77.77.3.0/24 [120/1] via 150.1.1.77, 00:00:01, Ethernet0/0
>> R 77.77.4.0/24 [120/1] via 150.1.1.77, 00:00:01, Ethernet0/0
>> R 77.77.5.0/24 [120/1] via 150.1.1.77, 00:00:01, Ethernet0/0
>> R 77.77.6.0/24 [120/1] via 150.1.1.77, 00:00:01, Ethernet0/0
>> R 77.77.7.0/24 [120/1] via 150.1.1.77, 00:00:01, Ethernet0/0
>> R 77.77.8.0/24 [120/1] via 150.1.1.77, 00:00:01, Ethernet0/0
>> R 77.77.9.0/24 [120/1] via 150.1.1.77, 00:00:01, Ethernet0/0
>> R 77.77.10.0/24 [120/1] via 150.1.1.77, 00:00:01, Ethernet0/0
>> R 77.77.12.0/30 [120/1] via 150.1.1.77, 00:00:01, Ethernet0/0
>> R 77.77.17.0/24 [120/1] via 150.1.1.77, 00:00:01, Ethernet0/0
>> R 77.77.21.0/30 [120/1] via 150.1.1.77, 00:00:01, Ethernet0/0
>> R 77.77.28.0/24 [120/1] via 150.1.1.77, 00:00:01, Ethernet0/0
>> R 77.77.33.0/24 [120/1] via 150.1.1.77, 00:00:01, Ethernet0/0
>> R 77.77.36.0/24 [120/1] via 150.1.1.77, 00:00:01, Ethernet0/0
>> R 77.77.44.0/24 [120/1] via 150.1.1.77, 00:00:01, Ethernet0/0
>> R 77.77.48.0/24 [120/1] via 150.1.1.77, 00:00:01, Ethernet0/0
>> R 77.77.58.0/24 [120/1] via 150.1.1.77, 00:00:01, Ethernet0/0
>> R 77.77.67.0/24 [120/1] via 150.1.1.77, 00:00:01, Ethernet0/0
>> R 77.0.0.0/8 [120/1] via 150.1.1.77, 00:00:01, Ethernet0/0
>>
>>
>> *Hong Chan * wrote:
>>
>> I don't see any wrong with your configuration but the config can be
>> simpler.
>> For me, I won't use prefix list to deny the route but let the statement
>> "route-map OSPF->RIP deny 20" to filter the routes.
>>
>> Pleae provide the show ip route in the rip & full configuration of the
>> router to let us to see which router redistribute the ospf route into rip
>> domain
>>
>> 2008/8/12 Huan Pham
>>
>>> I do not see any problem with your config.
>>>
>>> Please try "clear ip ospf process" on the router that do redistribution,
>>> to force the router to refresh routing table, and to apply the
>>> route-map.
>>>
>>> It worked for me in similar cases. Let me know if that works for you.
>>>
>>> Alternatively, you can you "distribute-list out interface" under the RIP
>>> to filter traffic you send to the other RIP neighbor, and the interface
>>> command "ip summary-address rip 77.0.0.0 255.0.0.0" to create summary
>>> route.
>>>
>>>
>>>
>>>
>>> -----Original Message-----
>>> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
>>> Igor Manassypov
>>> Sent: Tuesday, 12 August 2008 5:17 AM
>>> To: ccielab@groupstudy.com
>>> Subject: ospf->rip redistribution filtering with RR
>>>
>>> Hi Gang,
>>>
>>> Can someone please help me out with this scenario:
>>>
>>> - i have an ospf-rip redistribution, where ospf runs over my 77.x.x.x
>>> network with a bunch of routes. I am trying to create a summary within
>>> ospf, and redistribute only that summary to my rip process on same
>>> router by means of a route map like follows:
>>>
>>> router rip
>>> version 2
>>> redistribute ospf 77 metric 1 route-map OSPF->RIP passive-interface
>>> default network 150.1.0.0 neighbor 150.1.1.254 no auto-summary
>>>
>>> ip prefix-list SUMMARY seq 5 permit 77.0.0.0/8 ip prefix-list SUMMARY
>>> seq 10 deny 0.0.0.0/0 le 32 !
>>> route-map OSPF->RIP permit 10
>>> match ip address prefix-list SUMMARY
>>> route-map OSPF->RIP deny 20
>>>
>>>
>>> After redistribution, within rip I still get the complete routing info
>>> coming from ospf. Why would the above RR not stop the more specifics?!
>>>
>>> Thanks!!
>>>
>>>
>>> Igor M., M.Eng, P.Eng
>>> Network Architect
>>>
>>>
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>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>> Igor M., M.Eng, P.Eng
>> Network Architect
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