From: Godswill Oletu (oletu@inbox.lv)
Date: Mon Jul 10 2006 - 07:46:58 ART
Simone,
There is a difference between ARP and Inverse-ARP:
ARP means, I have a layer 3 address eg an IP address and I am looking for a
layer 2 address eg mac-address or DLCI.
Inverse-ARP, means, I have a layer 2 address eg mac-address or DLCI and I am
looking for a layer 3 address eg an IP address.
Today's traditional frame relay network uses Inverse-ARP and not ARP, so any
configuration referencing ARP will not have any effect on your frame relay
environment, especially labs focused on the CCIE (R&S) blue print.
On the flip side, ATM can use ARP as well as Inverse-ARP, we have
encountered ARP-servers and all the other classical IP over ATM jargons on
the ATM network. That aside, if two end routers want to talk frame relay
acrose an ATM network, then the command 'no arp frame-relay' might/might not
be needed, but thank God we do not have to deal with ATM in the CCIE (R&S)
lab again, so as you prepare for the lab you do not need to bother yourself
about arp in frame relay, just think inverse-arp and you will be fine.
HTH
Godswill Oletu
CCIE #16464
----- Original Message -----
From: <simone.schiassi@gmail.com>
To: <ccielab@groupstudy.com>
Sent: Monday, July 10, 2006 4:18 AM
Subject: Re: Re: frame-relay inverse arp
> no frame-relay inverse-arp disables arp requests.
> no arp frame disables arp replyes.
>
> Only the first one is necessary because not asking for arp is enough. If
someone is not asked someting he will definitely not reply!
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
This archive was generated by hypermail 2.1.4 : Tue Aug 01 2006 - 07:13:47 ART