From: Lupi, Guy (Guy.Lupi@eurekanetworks.net)
Date: Thu Jul 15 2004 - 08:35:29 GMT-3
From
http://www.cisco.com/en/US/tech/tk648/tk361/tech_brief09186a00801af2b9.html
Many customers want to configure Cisco IOS NAT to translate their local
addresses to global addresses allocated from unused addresses from an
attached subnet. This requires that the router answer ARP requests for those
addresses so that packets destined for the global addresses are accepted by
the router and translated. (Routing takes care of this packet delivery when
the global addresses are allocated from a virtual network which isn't
connected to anything.)
When a NAT pool used as an inside global or outside local, then the pool
consists of addresses on an attached subnet, and the software will generate
an alias for that address so that the router will answer ARPs for those
addresses.
This automatic aliasing also occurs for inside global or outside local
addresses in static entries. It can be disabled for static entries with the
"no-alias" keyword:
ip nat inside source static <local-ip-address> <global-ip-address> no-alias
-----Original Message-----
From: Carlos G Mendioroz [mailto:tron@huapi.ba.ar]
Sent: Thursday, July 15, 2004 7:19 AM
To: Group Study
Subject: nat static + no_alias ?
Group,
I am trying to understand the use of no_alias in the nat static command. We
did not reach a conclusion with Geert about it.
Anyone with a definite answer or case for it ?
Regards,
-- Carlos G Mendioroz <tron@huapi.ba.ar> LW7 EQI Argentina
This archive was generated by hypermail 2.1.4 : Sun Aug 01 2004 - 10:11:56 GMT-3