From: nagendra kumar (nagendranainar@yahoo.co.in)
Date: Tue Aug 21 2007 - 06:32:43 ART
Hi Shine,
AFAIK, the only interface where you can configure address with /32 mask is loopback. Rest all interfaces are meant to have one or more peer at the other end. So if your task is to configure /32 address, you need to use"ip unnumbered" under the physical interface and add a static route to reach the other end.
Regards,
Nagendra
CCIE 19999 <ccie@iprimus.com.au> wrote: Have you tried adding /32 mask address to a physical interface? I don't
think you will be able to do that. That's why the ip address is assigned to
the loopback and used the unnumbered on the interface.
HTH,
Shine
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
ISolveSystems
Sent: Tuesday, 21 August 2007 1:36 PM
To: Joseph Brunner
Cc: Cisco certification
Subject: Re: 167.1.45.Y/32 for PPP Serial Interface
Thanks Joe. I am still not fully understand it....Would it work if the /32
ip address is configured on the interface itself? I remember one lab that I
had to configure duplicate IP and it worked...I never understand the logic
behind it.
Do you have a internet resource that I can read?
Thanks.
On 8/20/07, Joseph Brunner wrote:
>
> By default in PPP a /32 "peer" neighbor route is created... this task
> takes
> that into account. Just by PPP LCP bringing up NCP for IP, they will learn
> of each others address, which is actually configured on the Loopback.
>
> Got it?
>
> -Joe
> CCNA #CSCO6536263
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> ISolveSystems
> Sent: Monday, August 20, 2007 11:14 PM
> To: Cisco certification
> Subject: 167.1.45.Y/32 for PPP Serial Interface
>
> Hello all,
> Here's how the question goes:-
>
> Configure R4 and R5 serial int using 167.1.45.4/32 and
> 167.1.45.5/32respectively. Ensure that R4 and R5 can ping each
> other's interface. The
> creattion of addtional interfaces is permitted.
>
> The solution creates additional Lo45 interface and use IP unnumbered lo45
> on
> the PPP s0/1 interface.
>
> Can someone point me to some link or explain to me the logic behind this?
>
> Thanks.
>
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