From: Chua, Parry (Parry.Chua@xxxxxxxxxx)
Date: Mon Apr 29 2002 - 03:50:45 GMT-3
The problem here is how to generate a default into eigrp domain, since eigrp do
es not have the feature of what ospf have, assume that we have no control over
the bgp peer. One way to do this is
to have a default route generated with the present of 220.128.1.0/24 in routing
table and then allow eigrp to advertise this default route.
> Parry Chua
>
>
-----Original Message-----
From: ying chang [mailto:ying_c@hotmail.com]
Sent: Monday, April 29, 2002 12:57 PM
To: Chua, Parry; ccielab@groupstudy.com
Subject: RE: Solie "The Enchilada" BGP default route question
Hi Parry,
That's what I thought. Now R5 has 220.128.1.0/24 in its routing table, but
it doesn't have a default route. How can you generate a default route into
eigrp when there's no default route in the routing table? eigrp understands
0/0 route, but there's no ospf "default-info originate always route-map ..."
equivalent command that I'm aware of.
I can have R2 generate 0/0 route into R5 and have R5 check 220.128.1.0/24
and send both 0/0 and 220.128.1.0/24 into R6, but I don't think this is the
solution the question is asking for though.
Thanks,
Chang
>From: "Chua, Parry" <Parry.Chua@compaq.com>
>To: "ying chang" <ying_c@hotmail.com>, <ccielab@groupstudy.com>
>Subject: RE: Solie "The Enchilada" BGP default route question
>Date: Mon, 29 Apr 2002 12:07:11 +0800
>
>This is how I interpret this question, R5 must receive a bgp route of
>220.128.1.0/24 and then it will generate a default into eigrp.
>
> > Parry Chua
> >
> >
>
>
>-----Original Message-----
>From: ying chang [mailto:ying_c@hotmail.com]
>Sent: Monday, April 29, 2002 11:30 AM
>To: ccielab@groupstudy.com
>Subject: Solie "The Enchilada" BGP default route question
>
>
>The question is from Solie's "The Enchilada" section X: BGP configuration,
>question 3:
>
>"Have R5 advertise a default route to the ATM network if and only if it has
>the route 220.128.1.0/24."
>
>For those who don't have the book, the topology is like below:
>
>220.128.1.0--R4(AS4)---R7(As2001)----R2(AS2001)---R5(AS5)---eigrp---R6
>
>Where ATM cloud is between R5 and R6, but any media would do.
>
>I personally don't think this problem is solvable unless there is a default
>route in R5 that we can redistribute into R6. Although the default route
>can
>be generated from R4, R7 or R2 dynamically or statically define in R5, but
>I'm not sure if it is allowed.
>
>The solution provided from CiscoPress for this question is incorrect, it
>generates default route towards to bgp world instead of R6. I am wondering
>if someone has a creative way to solve this problem.
>
>Thanks,
>Chang
>
>
>
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