From: ccie2be (ccie2be@nyc.rr.com)
Date: Thu Dec 09 2004 - 20:37:05 GMT-3
Thanks Brian,
That was a great explanation.
In what kind of scenario would I ever NEED "the router to proxy ARP for
another
172.16.1.0/24 IP address say 172.16.1.30?
And, if I did need to enable local proxy arp would that mean that some host
was screwed up or the network was poorly designed?
thanks again, Tim
----- Original Message -----
From: "Brian Dennis" <bdennis@internetworkexpert.com>
To: "ccie2be" <ccie2be@nyc.rr.com>; "Group Study" <ccielab@groupstudy.com>
Sent: Thursday, December 09, 2004 6:02 PM
Subject: RE: Local Proxy ARP
Tim,
It's when you want to proxy ARP for IP addresses on the local IP
network. Example: the router's interface is addressed with
172.16.1.1/24 and you need the router to proxy ARP for another
172.16.1.0/24 IP address say 172.16.1.30. Normally the router would not
proxy ARP for 172.16.1.30 as it would assume the device with that IP
address would answer the ARP itself.
To enable it use the "ip local-proxy-arp" interface command.
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
ccie2be
Sent: Thursday, December 09, 2004 2:29 PM
To: Group Study
Subject: Local Proxy ARP
Hi guys,
When you do a show ip int X, one of the things listed is "Local Proxy
ARP
<enabled |disabled>". It's right under the line for Proxy ARP.
I know what proxy arp is but what's LOCAL proxy arp?
And, if I needed to, how would I enable it?
Also, the next line after the Local proxy arp says "Security Level is
default". What's that about?
Any insight would be appreciated.
TIA, Tim
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