From: Chua, Parry (Parry.Chua@xxxxxxxxxx)
Date: Tue Feb 19 2002 - 22:03:21 GMT-3
Hi,
>From /22 to /24, it is reverse of summarization. because /22 = 4 x /24.
1. One way is using tunnel as posted by the member from this group.
2. I have use secondary address, ie /22 into 4 x /24 in the same
interface. So far
it works in my routers (IOS 12.0 to 12.1(5)). But beaware that
subneting
will always lost of 2 IP address per subnet(this network and
broadcast).
3. If there is another network from ospf domain, you can use ip default
network if allow.
4. IP policy route.
Parry Chua
-----Original Message-----
From: Williams, Glenn [mailto:WILLIAMSG@PANASONIC.COM]
Sent: Tuesday, February 19, 2002 11:48 PM
To: 'Carl Phelan'; Michael C. Popovich; ccielab@groupstudy.com
Subject: RE: That Old OSPF-IGRP Problem
Guys,
The network is already /22 so the word summarize is really not even
appropriate here. He is trying to get this into /24 which means kind of
the
opposite of summarizing. I'm not sure if you tried to redistribute
connected on the second OSPF process and summarize this. Worth a try.
GW
-----Original Message-----
From: Carl Phelan [mailto:carlphelan@hotmail.com]
Sent: Tuesday, February 19, 2002 8:35 AM
To: Michael C. Popovich; ccielab@groupstudy.com
Subject: Re: That Old OSPF-IGRP Problem
Area 2 is ASBR, Area 0 only. 137.7.8.1/22 belongs to e0 which connects
to
R3 which is ABR, R3 is ABR with Area 0 and 10. I have tried the area
range
and summary addres on R3 without luck.
Thanks for your help.
----- Original Message -----
From: "Michael C. Popovich" <mpopovich@layer3.biz>
To: "Carl Phelan" <carlphelan@hotmail.com>; <ccielab@groupstudy.com>
Sent: Tuesday, February 19, 2002 2:23 PM
Subject: RE: That Old OSPF-IGRP Problem
R2 has the /22 network.
Is the network a loopback or is it actually adjoined to another router?
If it is adjoined to another router why type of OSPF router is it? ABR?
Area 0 only?
If it is an ABR try summarizing there.
Give us more of the config on R2.
-----Original Message-----
From: Carl Phelan [mailto:carlphelan@hotmail.com]
Sent: Tuesday, February 19, 2002 5:53 AM
To: ccielab@groupstudy.com
Subject: That Old OSPF-IGRP Problem
Hi All,
I have read through the archives and attempted the most viable solution
without success. R4 runs IGRP on /24 mask adjoining R2 which runs IGRP
and
OSPF area 0. R2 has e0 as 137.7.8.1/22 - how to get this into IGRP? I
cannot
use area range or summary commands in area 0 so I create a second OSPF
process
- OSPF 2 - and redistribute OSPF proc 1 into OSPF 2 then use the summary
address - 137.7.8.0 255.255.255.0 without joy. If I add a 'red
connected sub'
command to OSPF proc 2 as well then I get a null0 summary to the subnet
on R2
and R4 sees it in IGRP but pings the null0. Any ideas? Thanks. I am
running
IOS 12.0(15).
router ospf 1
redistribute igrp 10 subnets route-map igrp-redistrib
network 137.7.8.1 0.0.0.0 area 0
network 137.7.14.2 0.0.0.0 area 100
!
router ospf 2
summary-address 137.7.8.0 255.255.255.0
redistribute ospf 1 subnets
!
router igrp 10
timers basic 5 15 30 50
redistribute ospf 1 metric 64000 100 255 1 1500 route-map
ospf-redistrib
redistribute ospf 2 metric 64000 100 255 1 1500 route-map
ospf-redistrib
passive-interface BRI0
passive-interface Ethernet0
passive-interface Loopback0
network 137.7.0.0
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