From: Piotr (usaccie@gmail.com)
Date: Mon Sep 29 2008 - 00:38:54 ART
http://www.cisco.com/en/US/tech/tk648/tk361/technologies_tech_note09186a0080094c32.shtml
The no-alias option means that the router does not respond for the addresses
and does not install an ARP entry. If another router uses a NAT pool as an
inside global pool that consists of addresses on an attached subnet, an
alias is generated for that address so that the router can answer Address
Resolution Protocol (ARP) requests for those addresses. This causes the
router to have ARP entries for the fake addresses.
In the example you posted both routers have the 172.16.0.0 subnet.
Thanks
On Sun, Sep 28, 2008 at 10:50 PM, Edouard Zorrilla <ezorrilla@tsf.com.pe>wrote:
> Group :
>
> I understand that static NAT IP can responde to arp-request, while
> "no-alias"
> command forbidden such action. But I really do not know why in this example
> they use "no-alias" in the nat command ?:
>
>
> http://www.cisco.com/en/US/tech/tk583/tk372/technologies_configuration_exampl
> e09186a00800b07ed.shtml<http://www.cisco.com/en/US/tech/tk583/tk372/technologies_configuration_example09186a00800b07ed.shtml>
>
> I lab it up with one static nat over a serial like this example and it
> works
> with and without "no-alias" at the end.
>
> Any ideas ?
>
> Regards
>
>
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