From: Brian Hescock (bhescock@xxxxxxxxx)
Date: Sun Jan 21 2001 - 17:08:35 GMT-3
Nigel,
I haven't much experience with IGRP so I spent much of the day yesterday
on it. Here's what I did:
- go to www.groupstudy.com
- click on "archives"
- click on "ccielab"
- search on "default-network" and select 500 results
You'll find a lot of discussion regarding IGRP and interaction with OSPF
and EIGRP.
Brian
On Sun, 21 Jan 2001, Nigel Taylor wrote:
> David,
> Another part of the lab requirements also said "NO" static
> routes could be configured.. So I'm read through like every book I've
> got... and checking like every IGRP doc on CCO for and answer...
>
> Thoughts anyone.....?
>
> Thanks
>
> Nigel..
>
> ----- Original Message -----
> From: David FAHED <dfahed@outremer.com>
> To: Nigel Taylor <nigel_taylor@hotmail.com>; <ccielab@groupstudy.com>
> Sent: Sunday, January 21, 2001 2:24 PM
> Subject: Re: IGRP/EIGRP/OSPF redistribution cont'd....
>
>
> > Your IGRP is configured with a /26 so you can not see any with a mask
> different
> > /26. So you will not see 172.17.59.48/28, 172.17.59.68/30 and
> 172.17.59.0/29.
> > The solution is two summarize all this route with a /26 mask. The problem
> is
> > that igrp does not have a summarization command, so the way to accomplish
> > summarization is to configure two static route and then redistribute that
> route
> > int igrp:
> >
> > ip route 172.17.59.0 255.255.255.192 null0
> > ip route 172.17.59.64 255.255.255.192 null0
> >
> > router igrp x
> > redistribute static metric ....
> >
> > Hope this help;
> >
> >
> > Nigel Taylor wrote:
> >
> > > Hey All,
> > > I'm also working on a OSPF - EIGRP - IGRP redistribution
> lab. In
> > > my case the lab
> > > required you to only use 172.17.59.x for the EIGRP and OSPF domains.
> The
> > > requirement
> > > called for the IGRP domain that is connected to use 171.68.62.93 w/ a 26
> bit
> > > mask.
> > > Let's try some ASCII art.....
> > >
> > > EIGRP(E1)------R3 -------(S1)---(FR, P-t-P, Area
> > > 0)---R2 ---------R1----(Area 1)
> > > / \
> > > / \
> > > IGRP OSPF(Area 2)
> > > (E0) (E2)
> > > / \
> > > R4 R5
> > > \
> > > (Area 3)
> > >
> > > Ok, I've got the EIGRP(E1) using 172.17.59.0/29. The OSPF domain is
> > > using 172.17.59.48/28(S1) and (E2) using 172.17.59.68/30. As I said the
> > > IGRP(E0)
> > > is assigned 171.68.62.93 w a /26 on R3's E0 interface. I've read
> through
> > > the list thread
> > > on this but I'm still unable to see a route to the OSPF from the IGRP
> > > domain.
> > > I'm so tired at this point can anyone shed some light on this for me...
> > >
> > > TIA
> > >
> > > Nigel...
> > >
> > > ----- Original Message -----
> > > From: David FAHED <dfahed@outremer.com>
> > > To: Mike McSpedon <mike@mentortech.com>
> > > Cc: fwells12 <fwells12@hotmail.com>; <ccielab@groupstudy.com>
> > > Sent: Sunday, January 21, 2001 1:05 PM
> > > Subject: Re: IGRP/OSPF redistribution question.
> > >
> > > > I forgot something:
> > > > If OSPF have a /20 network you can use15 /24 network to advertise this
> > > network.
> > > >
> > > > Mike McSpedon wrote:
> > > >
> > > > > Regarding the first approach - I'd be careful to do that only if the
> > > routes
> > > > > in the OSPF domain aren't summarizable into a /24 (e.g., OSPF has a
> /20
> > > > > that needs to be reachable from the IGRP domain). Regarding the
> second
> > > > > approach, since Paige is an ASBR, you'll need to use the
> > > "summary-address"
> > > > > not the "area-range" command to summarize the /26 and /28 into /24s
> for
> > > IGRP.
> > > > >
> > > > > HTH,
> > > > > -Mike
> > > > >
> > > > > At 08:05 AM 1/21/01 -0400, David FAHED wrote:
> > > > > >There is two way to do that :
> > > > > >1) Create a loopback on Paige for example 10.0.0.1 - Use the
> default
> > > > > >network 10.0.0.0 to announce a default route into igrp process
> > > > > >2) All the network with a mask differente to /24 use in the ospf
> domain
> > > > > >have to be announce with /24. You can use an area range with the
> two
> > > > > >route in gibson - for the route 172.20.113.192/26 area x range
> > > > > >172.20.113.0 255.255.255.0 -for the route 172.20.114.48/28 area x
> range
> > > > > >172.20.113.0 255.255.255.0 - After doing that you will have only
> /24
> > > > > >network on paige and you can redistribute into IGRP without problem
> > > > > >
> > > > > >Hope this help!
> > > > > >
> > > > > >
> > > > > >fwells12 wrote:
> > > > > >
> > > > > > > In Jeff Doyle's example of OSPF/IGRP redistribution on page 710,
> is
> > > =
> > > > > > > there any way of letting the IGRP domain be able to ping the
> VLSM =
> > > > > > > networks?
> > > > > > >
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