From: Bauer, Rick (BAUERR@xxxxxxxxxxx)
Date: Thu Dec 27 2001 - 11:50:48 GMT-3
Actually, you don't need default-information originate if your L1/L2 is
connected to another area. I just did some testing and you are correct with
the default route 0/0, this is contrary to Doyle v1 and what I have seen in
past IOS 10 and 11. Do you have any information on when this changed?
-----Original Message-----
From: Stephen C. Feldberg [mailto:scfeldberg@hotmail.com]
Sent: Wednesday, December 26, 2001 8:09 PM
To: Bauer, Rick
Cc: ccielab@groupstudy.com; tsungdapaulyoung@yahoo.com
Subject: Re: ISIS Level1/Level2 default route question
Default originate does not require a default route to be present in the
table of the Level 1-2 router.
Steve
----- Original Message -----
From: "Bauer, Rick" <BAUERR@toysrus.com>
To: "'Stephen C. Feldberg'" <scfeldberg@hotmail.com>
Sent: Wednesday, December 26, 2001 11:21 AM
Subject: RE: ISIS Level1/Level2 default route question
> A default route and default originate is another way to achieve the same
> thing, as I said.
>
> I have found some strange things with 12.1. Now if your L1/L2 is connected
> to another area then a default route automatically generated, in previous
> versions you had use default originate/default route or enable clns
routing
> in order for the ATT bit to be passed to L1.
>
>
>
> -----Original Message-----
> From: Stephen C. Feldberg [mailto:scfeldberg@hotmail.com]
> Sent: Wednesday, December 26, 2001 10:19 AM
> To: Bauer, Rick; ccielab@groupstudy.com; Paul Young
> Subject: Re: ISIS Level1/Level2 default route question
>
>
> CLNS is not required in this scenario. To achieve the result you are
> looking for, use the "default-information originate" statement under isis
> router configuration on the Level1-2 router.
>
> R2#sh run
> !
> interface Ethernet0
> ip address 10.1.1.2 255.0.0.0
> no ip directed-broadcast
> ip router isis
> !
> router isis
> default-information originate
> net 10.0000.0000.0001.00
> !
>
> R4# sh run
> !
> interface Ethernet0
> ip address 10.1.1.4 255.0.0.0
> no ip directed-broadcast
> ip router isis
> no ip route-cache
> no ip mroute-cache
> !
> router isis
> net 10.0000.0000.0002.00
> is-type level-1
> !
> R4#sh ip route
>
> i*L2 0.0.0.0/0 [115/10] via 10.1.1.2, Ethernet0
>
> Steve
> ----- Original Message -----
> From: "Bauer, Rick" <BAUERR@toysrus.com>
> To: <ccielab@groupstudy.com>
> Sent: Wednesday, December 26, 2001 7:51 AM
> Subject: RE: ISIS Level1/Level2 default route question
>
>
> > You need to add clns router isis to the interfaces that connect to your
L1
> > routers. Remember the ATT bit is not understood by a router only running
> ip
> > router isis? Or you could on the L2/L1 add a static 0/0 to the null and
> use
> > default originate.
> >
> > -----Original Message-----
> > From: Paul Young [mailto:tsungdapaulyoung@yahoo.com]
> > Sent: Wednesday, December 26, 2001 12:38 AM
> > To: ccielab@groupstudy.com
> > Subject: ISIS Level1/Level2 default route question
> >
> >
> > Hi group:
> >
> > I'm a little puzzled over why my isis level1/level2
> > routers won't propergate a default route to the isis
> > level-1 routers it's connected to. Below is the
> > setup:
> >
> > level-1 router ---- Level-1/2 router (net 49.0001)
> > ---- Level-1/2 router (net 49.0002)--- level-1 router
> >
> > Doesn't isis level1/level2 router suppose to
> > propergate a default route to the isis level-1 router?
> > I was thinking that's how level-1 router can reach a
> > level-1 router that resides in a different area (see
> > above).
> >
> > I could of swore I had this working in the past, I'm
> > wordering if this is an IOS issue since I've recently
> > upgraded IOS on my routers to 12.1(5)T10.
> >
> > All inputs/suggestions appreciated, thanks.
> >
> > Regards,
> > Paul Young.
> >
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