Hi Kingsley this document shld help. http://www.cisco.com/en/US/tech/tk648/tk361/technologies_tech_note09186a0080094adb.shtml
basically proxy arp is needed only if a network has been subnetted with variable masks and one range covers the other range . Thanks and regards Yogesh Gawankar Mob: +919686084976 --- On Mon, 8/9/10, Kingsley Charles <[email protected]> wrote: From: Kingsley Charles <[email protected]> Subject: [OSL | CCIE_Security] Proxy ARPs To: [email protected] Date: Monday, August 9, 2010, 6:32 PM Hi all Router sends Proxy ARPs when it knows the route for the host for which an ARP request is sent. A router can't have two interface in the same subnet. A host sends ARP request for the host in the same subnet or to the default gateway's IP address. Since the hosts sends an ARP request to the default gateway directly for other subnet's host, why would need a Proxy ARP. Where would Proxy ARP have it's role? With regards Kings -----Inline Attachment Follows----- _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
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