From: xander (xander@xxxxxx)
Date: Wed May 09 2001 - 05:43:13 GMT-3
Hello Paul,
1. Summary-address summaries only external routes from any kind of
redistribution, so inter- and intra-routes DON'T summary at all.
2. area-range summaries routes on area criteria only on ABRs and these
ranges propogate into another areas instead of originating area. So,
if you have many classless networks in one ospf area, and you need to
advertise them into FLSM process, you have to configure one of
following:
a) from ASBR - configure another ospf process and
double-redistribute between them and summary-address with classful
network mask configured in one of them, it does'nt metter where, but
better in the main ospf process, do not forget to filter routes to
avoid redistribution loops.
b) from ABR - configure area-range with classfull network mask.
PC> I have it working now. I had to use the area range command at the abr, as
I
PC> thought. What I did not know was that if I use a summary-address command a
t
PC> the asbr's that will create an entry in the routing table going to null0,
PC> for ospf areas that are connected to that router. Then I have a route entry
PC> with the network mask that will allow the router to be redistributed into
PC> igrp.
PC> Thanks for all of the suggestions,
PC> Paul Crist
PC> ----- Original Message -----
PC> From: "Johnny Dedon" <johnny.dedon@exodus.net>
PC> To: "Paul Crist" <pcrist@netsync.net>
PC> Sent: Tuesday, May 08, 2001 6:22 PM
PC> Subject: Re: FatKid 501
>> Can you post your config for the asbr in area 2? Is this router actually
PC> an
>> asbr or is it an abr? I would also like to see the routing table of the
>> ASBR in ARea0 if possible.
>>
>> Johnny Dedon
>> Senior Staff Consultant
>> Exodus Professional Services
>> johnny.dedon@exodus.net
>> www.exodus.net
>> ----- Original Message -----
>> From: "Paul Crist" <pcrist@netsync.net>
>> To: "Johnny Dedon" <johnny.dedon@exodus.net>
>> Sent: Tuesday, May 08, 2001 4:22 PM
>> Subject: Re: FatKid 501
>>
>>
>> > I had one at the asbr in area 2 and it does not sho a summary in area 0.
>> > ----- Original Message -----
>> > From: "Johnny Dedon" <johnny.dedon@exodus.net>
>> > To: "Paul Crist" <pcrist@netsync.net>
>> > Cc: <ccielab@groupstudy.com>
>> > Sent: Tuesday, May 08, 2001 5:02 PM
>> > Subject: Re: FatKid 501
>> >
>> >
>> > > Paul,
>> > > You can not create the area range inside of area 0 and see it in area
PC> 0.
>> > It
>> > > needs to be advertised into area 0. Try using the area range command
PC> in
>> > > area 2 to summarize an area 2 route and then go look at the routing
>> table
>> > of
>> > > a router in area 0.
>> > >
>> > > Johnny Dedon
>> > > Senior Staff Consultant
>> > > Exodus Professional Services
>> > > johnny.dedon@exodus.net
>> > > www.exodus.net
>> > > ----- Original Message -----
>> > > From: "Paul Crist" <pcrist@netsync.net>
>> > > To: "Johnny Dedon" <johnny.dedon@exodus.net>
>> > > Cc: <ccielab@groupstudy.com>
>> > > Sent: Tuesday, May 08, 2001 3:44 PM
>> > > Subject: Re: FatKid 501
>> > >
>> > >
>> > > > Originally I was working with just the area ranges, the summary
>> address
>> > > got
>> > > > into the config when I was trying anything to get it to work. Here
PC> is
>> > the
>> > > > router ospf from the abr and the sho ip route, as you can see I
PC> don't
>> > get
>> > > a
>> > > > summary for the 170.10.1.0 network.
>> > > >
>> > > > router ospf 200
>> > > > area 0 range 170.10.1.0 255.255.255.0
>> > > > area 2 virtual-link 170.10.4.4
>> > > > network 170.10.1.18 0.0.0.0 area 0
>> > > > network 170.10.1.35 0.0.0.0 area 0
>> > > > network 170.10.2.5 0.0.0.0 area 2
>> > > > network 170.10.3.5 0.0.0.0 area 2
>> > > >
>> > > > 170.10.0.0/16 is variably subnetted, 12 subnets, 4 masks
>> > > > O E2 170.10.32.0/24 [110/158350] via 170.10.2.4, 00:06:02,
>> Ethernet0
>> > > > O E2 170.10.33.0/24 [110/20] via 170.10.2.4, 00:06:02, Ethernet0
>> > > > C 170.10.1.32/28 is directly connected, Serial0.103
>> > > > O IA 170.10.4.4/32 [110/11] via 170.10.2.4, 00:06:02, Ethernet0
>> > > > O 170.10.1.0/28 [110/128] via 170.10.1.17, 00:06:02,
PC> Serial0.102
>> > > > [110/128] via 170.10.1.33, 00:06:02,
PC> Serial0.103
>> > > > O IA 170.10.2.0/24 [110/20] via 170.10.2.4, 00:06:02, Ethernet0
>> > > > C 170.10.2.0/26 is directly connected, Ethernet0
>> > > > C 170.10.3.0/24 is directly connected, Loopback0
>> > > > O E2 170.10.4.0/24 [110/158350] via 170.10.2.4, 00:06:02,
PC> Ethernet0
>> > > > O E2 170.10.16.0/24 [110/158350] via 170.10.2.4, 00:06:03,
>> Ethernet0
>> > > > O E2 170.10.17.0/24 [110/158350] via 170.10.2.4, 00:06:03,
>> Ethernet0
>> > > > C 170.10.1.16/28 is directly connected, Serial0.102
>> > > >
>> > > > ----- Original Message -----
>> > > > From: "Johnny Dedon" <johnny.dedon@exodus.net>
>> > > > To: "Paul Crist" <pcrist@netsync.net>
>> > > > Sent: Tuesday, May 08, 2001 4:26 PM
>> > > > Subject: Re: FatKid 501
>> > > >
>> > > >
>> > > > > Paul,
>> > > > > I haven't looked at this lab, but I think you problem is related
PC> to
>> > one
>> > > of
>> > > > > two things. First, the summary address command is used to
PC> summarize
>> > > > > external routes being redistributed into ospf. Second, the area
>> range
>> > > > > command summarizes routes to be advertised to other ospf areas.
PC> You
>> > > should
>> > > > > look to summarize the route before it gets to area 0 where it
PC> looks
>> > like
>> > > > > your redistribution is occurring. Can you summarize it in Area2
>> using
>> > > the
>> > > > > area-range command? If so the summary will show up in area 0
PC> where
>> > you
>> > > > can
>> > > > > redistribute into igrp.
>> > > > >
>> > > > > HTH
>> > > > > Johnny Dedon
>> > > > > Senior Staff Consultant
>> > > > > Exodus Professional Services
>> > > > > johnny.dedon@exodus.net
>> > > > > www.exodus.net
>> > > > > ----- Original Message -----
>> > > > > From: "Paul Crist" <pcrist@netsync.net>
>> > > > > To: <ccielab@groupstudy.com>
>> > > > > Sent: Tuesday, May 08, 2001 3:04 PM
>> > > > > Subject: FatKid 501
>> > > > >
>> > > > >
>> > > > > > I am doing the fatkid 501 lab and I can't get a network to
>> summarize
>> > > and
>> > > > > > redistribute into IGRP. Instead of using multipoint on the
PC> frame
>> > > relay
>> > > > > > network I used point to point sub interfaces. When I attempt to
>> do
>> > an
>> > > > > summary
>> > > > > > address at the redistribution router it does not work. My IP
>> > address
>> > > > from
>> > > > > the
>> > > > > > frame relay are all subnets of the same class C address which I
PC> am
>> > > > trying
>> > > > > to
>> > > > > > do a summary address for. Here is the router ospf and igrp from
>> the
>> > > > > > redistribution router. The 170.10.1.0 network is the problem
>> child.
>> > > > > >
>> > > > > > router ospf 200
>> > > > > > area 0 range 170.10.1.0 255.255.255.0
>> > > > > > area 2 range 170.10.2.0 255.255.255.0
>> > > > > > area 2 virtual-link 170.10.3.5
>> > > > > > summary-address 170.10.1.0 255.255.255.0
>> > > > > > summary-address 170.10.2.0 255.255.255.0
>> > > > > > redistribute rip subnets
>> > > > > > redistribute igrp 200 subnets
>> > > > > > network 170.10.2.4 0.0.0.0 area 2
>> > > > > > network 170.10.4.4 0.0.0.0 area 3
>> > > > > >
>> > > > > > router igrp 200
>> > > > > > redistribute ospf 200
>> > > > > > redistribute rip metric 1 255 1 1 1
>> > > > > > passive-interface Ethernet0
>> > > > > > passive-interface Loopback0
>> > > > > > passive-interface Serial1
>> > > > > > passive-interface TokenRing0
>> > > > > > network 170.10.0.0
>> > > > > >
>> > > > > > Show ip route from the redistribution router:
>> > > > > > Gateway of last resort is not set
>> > > > > >
>> > > > > > 170.10.0.0/16 is variably subnetted, 11 subnets, 4 masks
>> > > > > > C 170.10.32.0/24 is directly connected, TokenRing0
>> > > > > > R 170.10.33.0/24 [120/1] via 170.10.32.3, 00:00:10,
>> TokenRing0
>> > > > > > O 170.10.1.32/28 [110/74] via 170.10.2.5, 01:06:40,
>> Ethernet0
>> > > > > > O 170.10.1.0/28 [110/138] via 170.10.2.5, 01:06:40,
>> Ethernet0
>> > > > > > O 170.10.2.0/24 is a summary, 01:06:34, Null0
>> > > > > > C 170.10.2.0/26 is directly connected, Ethernet0
>> > > > > > O IA 170.10.3.0/24 [110/11] via 170.10.2.5, 01:06:40,
PC> Ethernet0
>> > > > > > C 170.10.4.0/24 is directly connected, Loopback0
>> > > > > > O 170.10.3.5/32 [110/11] via 170.10.2.5, 01:06:40,
PC> Ethernet0
>> > > > > > C 170.10.16.0/24 is directly connected, Serial0
>> > > > > > O 170.10.1.16/28 [110/74] via 170.10.2.5, 01:06:40,
>> Ethernet0
>> > > > > > C 192.19.15.0/24 is directly connected, Serial1
>> > > > > >
>> > > > > > Sho ip route from the router in IGRP
>> > > > > >
>> > > > > > 170.10.0.0/24 is subnetted, 4 subnets
>> > > > > > I 170.10.32.0 [100/158313] via 170.10.16.4, 00:00:21,
>> Serial4
>> > > > > > I 170.10.33.0 [100/10002255] via 170.10.16.4, 00:00:21,
>> > Serial4
>> > > > > > I 170.10.4.0 [100/158750] via 170.10.16.4, 00:00:21, Seria
PC> l4
>> > > > > > C 170.10.16.0 is directly connected, Serial4
>> > > > > > **Please read:http://www.groupstudy.com/list/posting.html
>> > > > **Please read:http://www.groupstudy.com/list/posting.html
-- WBW, xander mailto:xander@adt.ru CCNA, CCNP+VoiceAccess, CCIE second attempt in Brussels 9-10, July, 2001... **Please read:http://www.groupstudy.com/list/posting.html
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