Re: Proxy-arp

From: Victor Cappuccio (vcappuccio@gmail.com)
Date: Sat Sep 27 2008 - 20:53:28 ART

IP proxy arp is where a node attempts to send data or resolve an IP address
to a MAC address which is on a different subnet. The router in that subnet
might have that IP address on one of its interfaces facing a different
network but graciously replied to the host's ARP request with its MAC
address. The host then transmits data to the router's MAC address to be
proxied through to its destination.
Example: http://anetworkerblog.com/2008/09/19/somecommands/

On Sun, Sep 28, 2008 at 12:25 AM, Ali Mousawi <mousawi.ali@gmail.com> wrote:

> Hello GS,
>
> I am testing proxy-arp with the following scenario: R1
> fa0/0-------155.1.146.0--------fa0/0 R4 s0/0-------155.1.0.0------s0/0 R5
>
> R4 has proxy-arp enabled on int Fa0/0.I am able to ping 155.1.0.4 from R1
> only if ip routing is disabled. Would you please explain how proxy arp
> works
> ?
>
> Regards
> Ali
>
>
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-- 
Victor Cappuccio
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CCSI# 30452
www.anetworkerblog.com

Blogs and organic groups at http://www.ccie.net

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