From: Salau, Yemi (yemi.salau@siemens.com)
Date: Wed Jul 11 2007 - 07:33:00 ART
That will be if you don't want EIGRP on R2 to receive certain
redistributed route from RIP (assuming same EIGRP process runs on R1 and
R2). Pre IOS 11.2, we never had the acl option, but from 11.2, it was
added to control the exterior routes that is either permit or denied
with the "default-information in|out" command.
Many Thanks
Yemi Salau
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Ben
Sent: Wednesday, July 11, 2007 11:17 AM
To: Mohamed M Moustafa
Cc: dayo@ademuyiwa.com; Cisco certification
Subject: Re: How is default-information command under router eigrp used?
Thank you Mohamed.
You are quite right that eigrp does not use "default-information
originate"
command. Instead you redistribute a static default, or use the interface
"ip
summary-add eigrp 100 0.0.0.0 0.0.0.0" command.
The command I'm struggling with is "default-information in|out acl".
Here is a scenario:
10.1.1.1 10.1.2.1 10.1.2.2
----eigrp--------(f0/0)R1(s0/0)-----------eigrp----------------(s0/0)R2-
---------rip----------
R1
int f0/0
ip add 10.1.1.1 255.255.255.0
int s0/0
ip add 10.1.2.1 255.255.255.0
ip summary-add eigrp 100 0.0.0.0 0.0.0.0
router eigrp 100
net 10.1.2.1 0.0.0.0
net 10.1.1.1 0.0.0.0
R2
int s0/0
ip add 10.1.2.2 255.255.255.0
router eigrp 100
net 10.1.2.2 0.0.0.0
In the above scenario R2 will accept the default route from R1. What
circumstance would require us to use the "default-information in acl"
command then?
Ben
On 7/11/07, Mohamed M Moustafa <mmma@gawab.com> wrote:
>
>
> Hi,
>
> EIGRP don't utilize the default-information originate command, to
> advertise
> default information --> add the default route statically and the do
> redistribution.
>
> Normally, exterior/default routes are always accepted and default
> information is passed between EIGRP processes when redistribution
occurs.
> when doing so, we still need to confirm the following command to
either
> allow the sending or receiving of a default route (allowed by
default):
>
> Router(config-router)#default-information ?
> allowed Allow default information
> in Accept default routing information
> out Output default routing information
>
>
> HTH,
> Mohammed Mahmoud.
>
> Ben <bmunyao@gmail.com> wrote on 11 Jul 2007, 12:27 PM:
> Subject: Re: How is default-information command under router eigrp
used?
> >Dayo,
> >
> >Thanks for responding.
> >
> >In eigrp, the syntax for this command is:
> >
> >router eigrp 100
> > default-information {allowed[in|out]|in|out [acl]}
> >
> >I'm having trouble figuring out how to use it, and scenarios that
apply.
> >
> >Ben
> >
> >
> >
> >On 7/11/07, dayo@ademuyiwa.com <dayo@ademuyiwa.com> wrote:
> >>
> >> Do you mean default information originate?
> >>
> >> On 7/11/07, Ben <bmunyao@gmail.com> wrote:
> >> > Hi
> >> >
> >> > I cann't seem to make sense of how to use the
"default-information"
> >> command
> >> > under EIGRP. Does anyone here have examples of its usage that
might
> >help
> >> me
> >> > digest this command.
> >> >
> >> > TIA
> >> >
> >> > Ben
> >> >
> >> >
>
This archive was generated by hypermail 2.1.4 : Sat Aug 18 2007 - 08:17:40 ART