From: Ludwig A. Morales (morales_l@xxxxxxxxxxx)
Date: Sun May 19 2002 - 01:41:20 GMT-3
This worked when I needed to summarize the from spokes, the ASBR (R4)got all
the /24 routes and redistributed them alright, but the area range command
don't seem to work to summarize the route from the ASBR to the other AS
(R5) .
Is this the right way to do it anyway?
http://fatkid.com/html/502_expert_redistribution.html
Thanks
Regards,
Ludwig
----- Original Message -----
From: "David Luu" <wicked01@ix.netcom.com>
To: "Ludwig A. Morales" <morales_l@hotmail.com>
Cc: <ccielab@groupstudy.com>
Sent: Sunday, May 19, 2002 12:22 AM
Subject: Re: FATKID 502 Expert Redistribution
> area 4 range 135.1.20.0 255.255.255.0
>
> At 11:29 PM 5/18/2002 -0400, Ludwig A. Morales wrote:
> >I just posted something with the same question (dont know why didt ge
> >trough)
> >
> >But basically i have your same concern there's the need to summarize the
> >/22 networrk in to a /24 so that the igrp process running on R5 accepts
the
> >135.1.20.0 route but i dont think the propose solution does this since
> >summary address command is use ti summarize externar advertisemtns
incoming
> >form another AS (or so i thougth)
> >
> >
> >This was my post:
> >
> >Can someone hint me here!! I'm running ospf and redistributing it to
igrp
> >from an ASBR connected in area 4, the igrp domain does not receive the
> >135.1.20.0/22 network since it Ethernet has a /24 subnet (I now that) now
my
> >question is how do I summarize the 20.0/22 network to a /24 range son
that
> >IGRP sees the advertisement, even though my understanding was that the
> >summary-address command was used to summarize incoming updates from
another
> >AS in to OSPF I used this solution as stated in fatkids configurations
(Ohh
> >this is fatkids 502 expert redistribution lab) but still does not work. I
> >was able to summarize all other /22 networks located in other areas with
the
> >area range command (but that was because this was interarea
summarization)
> >but HOW DO I SUMMARIZE TO OTHER AS?
> >
> >Thanks a lot for your help
> >
> >PS I posted my configs (omitted useless info. unconfigured interfaces
> >etc..)
> >
> >
> >Network 135.1.0.0
> >
> > R5 (igrp) 1.5/24 eth0-----------eth0 1.4/24 (igrp) R4 (OSPF area4)
.20.0
> >/22
> >
> >
> >R5
> >
> >interface Loopback5
> > ip address 135.1.15.5 255.255.255.0
> >!
> >interface Ethernet0
> > ip address 135.1.1.5 255.255.255.0
> >!
> >interface Serial0
> > no ip address
> > shutdown
> >!
> >router igrp 100
> > network 12.0.0.0
> > network 135.1.0.0
> >!
> >
> >C 192.19.15.0/24 is directly connected, Serial1
> > 135.1.0.0/24 is subnetted, 8 subnets
> >I 135.1.4.0 [100/156370] via 135.1.1.4, 00:00:36, Ethernet0
> >I 135.1.2.0 [100/156370] via 135.1.1.4, 00:00:36, Ethernet0
> >I 135.1.3.0 [100/156370] via 135.1.1.4, 00:00:36, Ethernet0
> >C 135.1.1.0 is directly connected, Ethernet0
> >I 135.1.14.0 [100/1600] via 135.1.1.4, 00:00:36, Ethernet0
> >C 135.1.15.0 is directly connected, Loopback5
> >I 135.1.13.0 [100/156370] via 135.1.1.4, 00:00:37, Ethernet0
> >I 135.1.100.0 [100/156370] via 135.1.1.4, 00:00:37, Ethernet0
> >
>
>***************************************************************************
*
> >******************
> >
> >R4
> >interface Loopback4
> > ip address 135.1.14.4 255.255.255.0
> >!
> >interface Ethernet0
> > ip address 135.1.1.4 255.255.255.0
> >!
> >interface Serial0
> > ip address 135.1.20.1 255.255.252.0
> > encapsulation x25
> > ip ospf network point-to-multipoint
> > ip ospf priority 0
> > x25 address 111
> > x25 map ip 135.1.20.3 444 broadcast
> > x25 map ip 135.1.20.4 555 broadcast
> >!
> >router ospf 100
> > router-id 4.4.4.4
> > log-adjacency-changes
> > summary-address 135.1.20.0 255.255.255.0
> > redistribute igrp 100 subnets
> > passive-interface Ethernet0
> > network 135.1.20.0 0.0.0.255 area 4
> >!
> >router igrp 100
> > redistribute ospf 100
> > passive-interface Loopback4
> > passive-interface Serial0
> > network 135.1.0.0
> > default-metric 64 20 255 1 1500
> >!
> >
> > 1.0.0.0/24 is subnetted, 1 subnets
> >C 1.1.1.0 is directly connected, Loopback0
> > 135.1.0.0/16 is variably subnetted, 13 subnets, 3 masks
> >O IA 135.1.4.0/24 [110/65] via 135.1.20.4, 00:18:43, Serial0
> >O IA 135.1.2.0/24 [110/65] via 135.1.20.4, 00:18:43, Serial0
> >O IA 135.1.3.0/24 [110/65] via 135.1.20.3, 00:18:43, Serial0
> >O IA 135.1.3.3/32 [110/11176] via 135.1.20.4, 00:18:43, Serial0
> >C 135.1.1.0/24 is directly connected, Ethernet0
> >O IA 135.1.13.3/32 [110/11176] via 135.1.20.4, 00:18:44, Serial0
> >C 135.1.14.0/24 is directly connected, Loopback4
> >I 135.1.15.0/24 [100/1600] via 135.1.1.5, 00:00:55, Ethernet0
> >O IA 135.1.13.0/24 [110/65] via 135.1.20.3, 00:18:44, Serial0
> >O 135.1.20.3/32 [110/64] via 135.1.20.3, 00:18:44,
> >erial0 -----------------------> need to sumarize this to /24
> >C 135.1.20.0/22 is directly connected,
> > ---------------------->
> >O 135.1.20.4/32 [110/64] via 135.1.20.4, 00:18:45, Serial0
> >O IA 135.1.100.0/24 [110/11175] via 135.1.20.4, 00:18:45, Serial0
> > [110/11175] via 135.1.20.3, 00:18:45, Serial0
> >
> >
> >
> >----- Original Message -----
> >From: "David Luu" <wicked01@ix.netcom.com>
> >To: "Todd Spencer" <spencertm@yahoo.com>; <ccielab@groupstudy.com>
> >Sent: Saturday, May 18, 2002 9:25 PM
> >Subject: Re: FATKID 502 Expert Redistribution
> >
> >
> > > i do not believe the solution provided will work, since
summary-address is
> > > used to summarize going into ospf...you would need to use the command
> >"area
> > > 4 range 135.1.20.0 255.255.255.0" on the abr
> > >
> > > At 04:53 PM 5/18/2002 -0700, Todd Spencer wrote:
> > > >I am trying to do the FatKid 502 Expert Redistribution
> > > >Lab, and I don't understand the solution provided. I
> > > >will try to briefly explain.
> > > >
> > > >The problem has to do with the classic VLSM to FLSM
> > > >problem (IGRP/OSPF). The lab requires that OSPF area
> > > >4 be configured with a /22 subnet, and the IGRP domain
> > > >be configured with a /24. OSPF area 4 is using the
> > > >following subnet 135.1.20.x/22 and the IGRP domain is
> > > >using 135.1.1.x/24. The OSPF configuration below is
> > > >taken from the solution:
> > > >
> > > >router ospf 1
> > > > summary-address 135.1.20.0 255.255.255.0
> > > > redistribute igrp 1 subnets
> > > > network 135.1.14.0 0.0.0.255 area 4
> > > > network 135.1.20.0 0.0.3.255 area 4
> > > >
> > > >I am unsure what the summary-address command is doing
> > > >in this configuration. How is it able to summarize a
> > > >/22 into a /24? How is the /22 subnet getting into
> > > >the IGRP domain? If anyone has done this lab and can
> > > >provide assistance, it would be greatly appreciated.
> > > >
> > > >-Todd
> > > >
> > > >
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