From: fwells12 (fwells12@xxxxxxxxxxx)
Date: Sat Nov 03 2001 - 13:54:52 GMT-3
Doyle Vol1 and Caslow's study guide spring to mind.
----- Original Message -----
From: "Dario Mussi" <dmussi@lucent.com>
To: "fwells12" <fwells12@hotmail.com>
Sent: Saturday, November 03, 2001 6:46 AM
Subject: Re: default route from OSPF to IGRP
> Sure, tha't why I found more than 30 messages in the archive about this
> issue. Please give to the contributors of the thread a "decent" ccie study
> tome and put me in cc.
>
> Many thanks
>
> Dario
>
> At 06.23 03/11/2001 -0800, you wrote:
> >Any decent ccie study tome will confirm your findings...
> >
> >----- Original Message -----
> >From: "Dario Mussi" <dmussi@lucent.com>
> >To: <ccielab@groupstudy.com>
> >Sent: Saturday, November 03, 2001 5:52 AM
> >Subject: default route from OSPF to IGRP
> >
> >
> > > Hi guys,
> > >
> > > It's seems I'm falling in an old games.
> > > I took a look in the list archives and I read some docs to but it's
not
> >all
> > > clear yet.
> > >
> > > R1(e0)---(e0)R2(s0)---(s0)R3
> > > OSPF IGRP
> > >
> > > R1 and R2 both run OSPF. R3 runs only IGRP.
> > > R1 redistribute a default route "ip route 0.0.0.0 0.0.0.0 137.20.20.1"
> > > where 137.20.20.x is the ethernet network where both R1 and R2 reside.
> > > IGRP doesn't underestand this route so I thought to configure R2
(which is
> > > redistributingOSPF into IGRP) with this command "ip default-network
> > > 137.20.0.0". The default-network declared is an attached net so it
takes
> > > precendence over the
> > > previous learned default route 0.0.0.0 from R1, but ping to networks
not
> >in
> > > tables resulted "unroutable" (probably 'cause the Ethernet is /24 and
not
> > > clasfull).
> > >
> > > I tried this on R2: ip default-network 137.20.20.0
> > > This is wrong 'cause this command is for classful net infact it
generated
> > > automatically the following line in R2 conf:
> > > ip route 137.20.0.0 255.255.0.0 137.20.20.0
> > >
> > > I kept this route and I re-typed the command in the right way "ip
> > > default-network 137.20.0.0"
> > > This default took precendence again over the 0.0.0.0 but this time
> > > everything works!!!
> > > Ping in no more "unroutable" because of the static. Here the routing
> >table:
> > > * 137.20.0.0/16 is variably subnetted, 2 subnets, 2 masks
> > > C 137.20.20.0/24 is directly connected, Ethernet0
> > > S* 137.20.0.0/16 [1/0] via 137.20.20.0
> > > 172.168.0.0/16 is variably subnetted, 7 subnets, 2 masks
> > > I 172.168.40.0/24 [100/8486] via 172.168.200.2, 00:00:22,
Serial0.2
> > > C 172.168.200.0/24 is directly connected, Serial0.2
> > > O*E2 0.0.0.0/0 [110/1] via 137.20.20.1, 03:09:27, Ethernet0
> > >
> > > Now I'm quite happy but I still don't understand what must be right
and
> > > what is defently wrong...
> > >
> > > Hope in some feedback.
> > > Dario
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