proxy arp

From: Navid Daghighi (daghighi.navid@free.fr)
Date: Wed Oct 17 2007 - 05:32:15 ART

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Hi,

Either I missed something, or there is an incoherence between cisco doc
and IE proxy lab.

Cisco doc says on Document ID: 13718 (Proxy-ARP, page 4) : when Host B
(172.16.10.200/24) tries to send packets to destination Host D
(172.16.20.200), it will not ARP for Host D IP address because it
belongs to a different subnet than what is configured on Host B ethernet
interface.

IE proxy lab (IP services, ver 4.1) shows with debug ARP that host R1
(no ip routing - 155.1.146.1 / 24) does send an ARP to R4 (155.1.0.4
/24), even though R1 knows that 155.1.0.4 is not on his subnet
155.1.146.0 /24.

What did I miss ?

Is there a mistake on IE lab, where masks should be /16 instead of /24 ?

thanks,
Navid

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