From: Charles Wang (cwang@xxxxxxxxxxxxxx)
Date: Wed May 23 2001 - 17:27:32 GMT-3
Hi, Mannan:
It happened to me too. If you "clear ip ospf process" and the summary
address will show up as /24 to null0.
But after a while or once you reload, it disappeared again. I suspect it is
a IOS bug (My IOS 12.1(7) on 2503).
Charles Wang
> -----Original Message-----
> From: Mannan Venkatesan [SMTP:venkat_m@ins.com]
> Sent: Wednesday, May 23, 2001 2:58 PM
> To: David Anderson
> Cc: ccielab@groupstudy.com
> Subject: Re: ospf/28 to igrp/24
>
> Unless, you see /24 route to null0 on R1, you will not able to ping OSPF
> network from R4. I think 'redistribute connected' is the culprit but I
> need
> to test it in the lab. 'Sh ip route and sh ip ospf data' results would
> help.
> I have tried this many times and it worked for me.
>
> HTHs,
> Mannan
>
>
> ----- Original Message -----
> From: "David Anderson" <dma@cisco.com>
> To: "Johnny Dedon" <johnny.dedon@exodus.net>
> Cc: <ccielab@groupstudy.com>
> Sent: Wednesday, May 23, 2001 2:23 PM
> Subject: Re: ospf/28 to igrp/24
>
>
> > Johnny,
> > I don't have access to my lab right now, but on R1 and R4 all of the
> > correct routes were in the routing tables, except the summary-address on
> > all of the routers. I tore everything down and did it from scratch and
> > there is still no route to null 0 showing up on the ASBR or a
> summary-route
> > on R2, R3, or R4. I don't quite understand why the route to null 0
> refuses
> > to show up on R1 ???
> > Thanks,
> > David
> > At 12:28 PM 5/23/2001 -0500, Johnny Dedon wrote:
> > >David,
> > >Can you post the sho ip route from R1 and R4.
> > >You should see a route to null0 on R1 and the routes and the 24 bit
> route
> > >should show up on r4.
> > >
> > >Just for info purposes, the distribute-list 1 out statement you are
> using
> > >under the ospf router process is of no use. It will not work with OSPF.
> > >You do not need the redistribute connected either.
> > >
> > >Johnny Dedon
> > >Senior Staff Consultant
> > >Exodus Professional Services
> > >johnny.dedon@exodus.net
> > >www.exodus.net
> > >----- Original Message -----
> > >From: "David Anderson" <dma@cisco.com>
> > >To: <ccielab@groupstudy.com>
> > >Sent: Wednesday, May 23, 2001 10:52 AM
> > >Subject: ospf/28 to igrp/24
> > >
> > >
> > > > Hi everyone,
> > > > First, I would like to thank everyone who responded to my
> redistribution
> > > > question a couple of days ago. I am still not able to get the
> summary
> > >route
> > > > to show up in my ospf routers or my igrp router. Below is the
> scenario
> > > > along with my configs. If anyone sees any reason why the routes are
> not
> > > > showing up, please let me know.
> > > >
> > > > Scenario:
> > > >
> > > > R1, R2, R3, R4 are connected over a frame cloud (R1 being the hub).
> R1,
> > > > R2, R3 are in OSPF area 0 using a /28 subnet mask. R1, R4 are
> running
> > >IGRP
> > > > with a /24 subnet mask. R1 is the ASBR and is performing mutual
> > > > redistribution. All the routes except for the summary route are in
> the
> > > > routing tables...accordingly
> > > > Thanks for the help.........
> > > >
> > > >
> > > > The configs:
> > > >
> > > > R1#
> > > > int loopback 0
> > > > ip address 172.1.1.1 255.255.255.0
> > > >
> > > > int S0
> > > > encapsulation Frame Relay
> > > > Frame-Relay lmi-type ansi
> > > >
> > > > int S0.1 point-to-point (connected to R4)
> > > > ip address 172.21.18.1 255.255.255.0
> > > > frame-relay interface-dlci 104
> > > >
> > > > int S0.2 multipoint
> > > > ip address 172.21.19.1 255.255.255.240
> > > > frame-relay map ip 172.21.19.2 102 broadcast
> > > > frame-relay map ip 172.21.19.3 103 broadcast
> > > > ip ospf network non-broadcast
> > > > ip ospf priority 100
> > > >
> > > > router ospf 1
> > > > network 172.21.19.0 0.0.0.255 area 0
> > > > network 172.21.1.1 0.0.0.0 area 0
> > > > neighbor 172.21.19.2
> > > > neighbor 172.21.19.3
> > > > redistribute igrp 1 subnets
> > > > redistribute connected subnets
> > > > distribute-list 1 out
> > > > summary-address 172.21.19.0 255.255.255.0
> > > >
> > > > router igrp 1
> > > > network 172.21.0.0
> > > > redistribute ospf 1 metric 64000 2000 255 1 1500
> > > > passive-interface s0.2
> > > >
> > > > access-list 1 permit 172.21.19.0 0.0.0.255
> > > >
> > > > R2#
> > > > int loopback 0
> > > > ip address 172.1.2.1 255.255.255.0
> > > >
> > > > int S0
> > > > encapsulation Frame Relay
> > > > Frame-Relay lmi-type ansi
> > > > ip address 172.21.19.2 255.255.255.240
> > > > frame-relay map ip 172.21.19.3 201 broadcast
> > > > frame-relay map ip 172.21.19.1 201 broadcast
> > > > ip ospf network non-broadcast
> > > > ip ospf priority 0
> > > >
> > > > router ospf 1
> > > > network 172.21.19.0 0.0.0.255 area 0
> > > > network 172.21.2.1 0.0.0.0 area 0
> > > >
> > > > R3#
> > > > int loopback 0
> > > > ip address 172.1.3.1 255.255.255.0
> > > >
> > > > int S0
> > > > encapsulation Frame Relay
> > > > Frame-Relay lmi-type ansi
> > > > ip address 172.21.19.3 255.255.255.240
> > > > frame-relay map ip 172.21.19.2 301 broadcast
> > > > frame-relay map ip 172.21.19.1 301 broadcast
> > > > ip ospf network non-broadcast
> > > > ip ospf priority 0
> > > >
> > > > router ospf 1
> > > > network 172.21.19.0 0.0.0.255 area 0
> > > > network 172.21.3.1 0.0.0.0 area 0
> > > >
> > > > R4#
> > > > int loopback 0
> > > > ip address 172.21.4.1 255.255.255.0
> > > >
> > > > int S0 (connected to R1 S0.1)
> > > > ip address 172.21.18.4 255.255.255.0
> > > > ip split-horizon
> > > > frame-relay map ip 172.21.18.1 401 broadcast
> > > > encapsulation Frame-Relay
> > > > Frame-Relay lmi-type ansi
> > > >
> > > > router igrp 1
> > > > network 172.21.0.0
> > > > David Anderson
> > > > Network Design Engineer
> > > > Enterprise Solutions Architecture & Design
> > > > (408) 853-5515
> > > > dma@cisco.com
> > > > | |
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> > David Anderson
> > Network Design Engineer
> > Enterprise Solutions Architecture & Design
> > (408) 853-5515
> > dma@cisco.com
> > | |
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