From: Ahmed Mamoor Amimi (mamoor@xxxxxxxx)
Date: Thu Apr 04 2002 - 12:57:18 GMT-3
Route to Null Zero in OSPF was introducted in 12.0(5)T
So who want to run on 12.0 can tryon (5)T version
-Mamoor
----- Original Message -----
From: Jason <jgraun@attbi.com>
To: 'Chua, Parry' <Parry.Chua@compaq.com>; 'Lupi, Guy'
<Guy.Lupi@eurekaggn.com>; 'Warren J Dubose ' <wdubose@cisco.com>
Cc: ''Mas Kato' ' <loomis_towcar@speedracer.com>; <ccielab@groupstudy.com>
Sent: Thursday, April 04, 2002 8:57 AM
Subject: RE: OSPF to IGRP redistribution (I know this has been killed, th i
s is short I promise)
> Here is what I thought was the original scenario
>
> (R1)---IGRP 10---(R2)--area 0--(R3)--area 10
>
> mask is /27 on link between R2-R3, IGRP 10 is using
> a /24 mask. The area 0 range command to summarize the link between
> R2-R3 will not work, I have seen certain release of 12.0 that will let
> this happened but in 12.1 it won't work.
>
> Jason
>
> -----Original Message-----
> From: Chua, Parry [mailto:Parry.Chua@compaq.com]
> Sent: Wednesday, April 03, 2002 8:22 PM
> To: Jason; Lupi, Guy; Warren J Dubose
> Cc: 'Mas Kato' ; ccielab@groupstudy.com
> Subject: RE: OSPF to IGRP redistribution (I know this has been killed,
> th i s is short I promise)
>
> I am not sure about 12.2, I ahve work on up to 12.1, you can do area 0
> range command in abr.
>
> assume you do area 0 at R2 and area 444 rnage at R4, this what should
> have happen
> <--------------(area 0 summary)
> <--------------<-----------<-------area 444 summary route)
>
> (R1)---area 111---(R2)--area 0--(R3)--area 0--(R4)--area 444--(R5)
>
> You can see the area 0 summary in R1
> You can see the area 444 summary route in R3,R2 and R1
>
> Parry Chua
>
> -----Original Message-----
> From: Jason [mailto:jgraun@attbi.com]
> Sent: Thursday, April 04, 2002 9:30 AM
> To: 'Lupi, Guy'; 'Warren J Dubose '
> Cc: ''Mas Kato' '; ccielab@groupstudy.com
> Subject: RE: OSPF to IGRP redistribution (I know this has been killed,
> th i s is short I promise)
>
>
> You cannot summarize area 0, doyle's first book talks about that the
> best way to solve this problem is to use a tunnel. I am also curious as
> to how you used a route-map to redistribute the routes?
>
>
> Jason
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Lupi, Guy
> Sent: Wednesday, April 03, 2002 6:54 PM
> To: 'Warren J Dubose '
> Cc: ''Mas Kato' '; 'ccielab@groupstudy.com '
> Subject: RE: OSPF to IGRP redistribution (I know this has been killed,
> th i s is short I promise)
>
> I have a loopback on it that I put in area 1, is that no good? Anyway,
> here
> is the config and routing table for r1, the summary route to null 0 is
> there, is that not allowed on the lab? It isn't a static route, thanks
> for
> your time.
>
> r1#sh ip route
> 141.63.0.0/16 is variably subnetted, 7 subnets, 4 masks
> O 141.63.1.0/24 is a summary, 04:54:06, Null0
> C 141.63.1.0/26 is directly connected, Loopback0
> C 141.63.7.0/24 is directly connected, Serial0
> C 141.63.7.0/25 is directly connected, Serial0
> O IA 141.63.5.0/27 [110/65] via 141.63.7.5, 02:53:23, Serial0
> C 141.63.10.0/25 is directly connected, Loopback99
> C 141.63.12.0/24 is directly connected, Ethernet0
> r1#
>
> r1#sh run
> Building configuration...
>
> Current configuration : 1532 bytes
> !
> version 12.1
> no service single-slot-reload-enable
> service timestamps debug uptime
> service timestamps log uptime
> no service password-encryption
> !
> hostname r1
> !
> logging rate-limit console 10 except errors
> no logging console
> !
> ip subnet-zero
> no ip finger
> no ip domain-lookup
> !
> cns event-service server
> !
> !
> !
> !
> !
> interface Loopback0
> ip address 141.63.1.1 255.255.255.192
> ip ospf network point-to-point
> !
> interface Loopback99
> ip address 141.63.10.1 255.255.255.128
> ip ospf network point-to-point
> !
> interface Ethernet0
> ip address 141.63.12.1 255.255.255.0
> !
> interface Ethernet1
> no ip address
> shutdown
> !
> interface Serial0
> ip address 141.63.7.11 255.255.255.0 secondary
> ip address 141.63.7.1 255.255.255.128
> encapsulation frame-relay
> ip ospf network broadcast
> no fair-queue
> no arp frame-relay
> frame-relay map ip 141.63.7.5 115 broadcast
> no frame-relay inverse-arp
> !
> interface Serial1
> no ip address
> shutdown
> !
> router ospf 100
> log-adjacency-changes
> area 0 range 141.63.5.0 255.255.255.0
> summary-address 141.63.1.0 255.255.255.0
> redistribute connected subnets
> network 141.63.7.0 0.0.0.127 area 0
> network 141.63.10.0 0.0.0.127 area 1
> !
> router igrp 100
> redistribute ospf 100
> passive-interface default
> no passive-interface Ethernet0
> network 141.63.0.0
> default-metric 1500 128 128 128 128
> !
> ip kerberos source-interface any
> ip classless
> no ip http server
> !
> !
> !
> line con 0
> transport input none
> line aux 0
> line vty 0 4
> login
> !
> end
>
> r1#
>
> -----Original Message-----
> From: Warren J Dubose
> To: Lupi, Guy
> Cc: 'Mas Kato'; ccielab@groupstudy.com
> Sent: 4/3/2002 5:13 PM
> Subject: RE: OSPF to IGRP redistribution (I know this has been killed,
> thi
> s is short I promise)
>
> Guy,
>
> MAS is correct.
>
> How can r1 belong to 2 areas when it is connected to r1 talking IGRP?
>
> There are two types of summarization in ospf:
>
> Intra-area route summarization
> ---- summarization can occur at two points in an OSPF network at
> "AREA BORDERS", where ABRs can be configured to announce a single
> Summary
> LSA for the range of networks residing within a "specific area"
>
> Inter-routing Domain Route Summarization
> --- on ASBRs at "route redistribution points" where ospf routes are
> being
> exported to another routing protocol, or non-ospf routes are being
> imported into opsf.
>
> Check out Doyle's or Caslow's book pertaining to summarization of OSPF.
> This should help ;)
>
> Regards,
> Warren
>
>
>
> On Wed, 3 Apr 2002, Lupi, Guy wrote:
>
> > Right, that is what I did, R1 is a member of 2 areas, area 1 and area
> 0.
> > Here is a partial output of "show ip ospf". This is why I don't
> understand
> > why it isn't working. I thought that as long as the router was an
> ABR, you
> > could use area range to summarize and inject into IGRP.
> >
> > r1#sh ip os
> > Routing Process "ospf 100" with ID 141.63.10.1 and Domain ID
> 0.0.0.100
> > Supports only single TOS(TOS0) routes
> > Supports opaque LSA
> > It is an area border and autonomous system boundary router
> >
> > -----Original Message-----
> > From: Mas Kato [mailto:loomis_towcar@speedracer.com]
> > Sent: Wednesday, April 03, 2002 4:30 PM
> > To: Lupi, Guy
> > Cc: ccielab@groupstudy.com
> > Subject: RE: OSPF to IGRP redistribution (I know this has been killed,
> > this is short I promise)
> >
> >
> > Guy,
> >
> > Although router1 is certainly an ASBR, it really doesn't become an ABR
> until
> > it becomes a member of two or more OSPF areas. If you hung another
> > OSPF-speaking router off of router1 and placed it in an area different
> from
> > router5, you would then see the results of your 'area range' command
> on that
> > new router, because that new router would know how to read the type 3
> > summary LSAs being originated by router1.
> >
> > Regards,
> >
> > Mas Kato
> > https://ecardfile.com/id/mkato
> >
> > > "Lupi, Guy" <Guy.Lupi@eurekaggn.com> "'ccielab@groupstudy.com'"
> > <ccielab@groupstudy.com>Date: Wed, 3 Apr 2002 14:44:12 -0500
> > >Reply-To: "Lupi, Guy" <Guy.Lupi@eurekaggn.com>
> > >
> > >I know this has been covered in detail before, I just want to verify
> > >something. I have the following:
> > >
> > >router2---------router1--------router5
> > >
> > >Router 5 and router 1 are OSPF, router 2 and router 1 is igrp only.
> I know
> > >how to use the secondary address, tunnel, and route-map methods. I
> know
> > how
> > >to use summary address on router 1 to get connected routes that are
> not in
> > >OSPF onto router 2. I cannot get routes from router 5 to router 2
> using
> > >area range on router 1. Router 1 is an ASBR, and an ABR. I cannot
> use the
> > >area range command to get the route from r5 to r2, and summary
> address
> > would
> > >never work, but tunnels, route-maps, and secondary addresses work. I
> > >thought that if the router was an ABR, you could do "area-range [area
> route
> > >is from] x.x.x.x x.x.x.x". Thanks.
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:57:54 GMT-3