Re: Local Proxy ARP

Dont have access to a rack at the moment, but when I am studying on Friday I
will re-create and do this.

Anybody have any idea why it wouldn't work? I can clearly see the ARP
Requests arrive on SW3 but it is not sending the reply back...

Proxy ARP is enabled by default
The ip route-cache same-interface was enabled by the ip local-proxy-arp
command along with no ip redirects as it is supposed too.

I dont understand :(

On Tue, Sep 14, 2010 at 1:07 AM, CCIE UY <ccieuy_at_gmail.com> wrote:

> Hi Garth, i had the same issue, do you have the ip prox-arp enable,
> because this need local proxy arp and ip proxy arp enabled to work.
>
> could you send the show ip interface ?
>
>
>
> 2010/9/13 Garth Bryden <hacked.the.planet.on.28.8k.dialup_at_gmail.com>
>
>> Hello,
>>
>> I have a problem and I am failing to understand why it is not working,
>> though it is probably obvious.
>>
>> I have two switches
>>
>> R1 ------------ SW1 ----------------- SW3
>> |
>> |
>> R3
>>
>> R1 and R3's interfaces are configured as protected ports in VLAN 1363
>>
>> SW3 has a SVI in VLAN 1363 with local proxy arp enabled
>>
>> The interswitch link is an access vlan 1363. There is reachability between
>> SW3 and R1, SW3 and R3 but no reachability between R1 and R3 as the ARP
>> table is "incomplete" as a result
>> of the switchports being protected.
>>
>> I believed that if SW3 had a SVI which was in the same segment with the
>> local-proxy-arp command enabled that it would respond to the ARP requests,
>> allowing connectivity but it is not working.
>>
>> I tested it if the SVI was on SW1 and it works ok, but if it is on SW3 is
>> does not.. Is there some kind of limitation stopping this? I can confirm
>> the
>> ARP requests are arriving at SW3..
>>
>>
>> SW3(config-if)#
>> *Mar 1 00:35:47.551: IP ARP: rcvd req src 204.12.11.1 000f.3471.04e0, dst
>> 204.12.11.3 Vlan1363
>>
>>
>> Many thanks,
>>
>> Garth
>>
>>
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Received on Wed Sep 15 2010 - 22:50:20 ART