From: Brian Dennis (bdennis@internetworkexpert.com)
Date: Sat Apr 22 2006 - 18:26:00 GMT-3
With PPPoFR, IP is not running directly over Frame Relay anymore (PPP is
between them) so inverse-ARP is not needed. Inverse-ARP is only used
when IP is running directly on top of Frame Relay.
Think about it like this: if you have a GRE tunnel running across a
Frame Relay cloud, would you need a Frame Relay mapping for the IP
addresses inside the GRE tunnel along with the layer 3 to layer 2
mappings used for the IP addresses that are assigned directly to the
Frame Relay interface? The answer is no since the IP addresses inside
the GRE tunnel are running on top of IP. This means you have IP->IP->FR
which is similar to PPPoFR which is IP->PPP->FR.
HTH,
Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
bdennis@internetworkexpert.com
Internetwork Expert, Inc.
http://www.InternetworkExpert.com
Toll Free: 877-224-8987
Direct: 775-745-6404 (Outside the US and Canada)
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Hash Aminu
Sent: Saturday, April 22, 2006 2:02 PM
To: Cisco certification
Subject: PPPoFR and "frame-relay inverse-arp"
Hello GS ,
i just want to confirm if we need frame-relay inverse arp for PPPoFR to
work
or not i am a littel confused on the confugrations.
someone should shade some ligh on this please
TIA
Hash
-- B.Eng, MCP,CCNA, CCNP
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