From: Carlos G Mendioroz (tron@huapi.ba.ar)
Date: Wed Jul 14 2004 - 07:26:05 GMT-3
And also would let you statically nat an inside service to a global
ip:port even when you only have one public address. Cute.
On a related topic, there's a no_alias option. Anyone with an example
case of where this option fits ?
I've seen it used when extendable, but I fail to get why.
Geert Nijs wrote:
> It will "expand" your translations for static natting.
>
> Previously, when using static nat, the only translation you saw in "show
> ip nat translation" was the ip address:
>
> <inside global> <inside local> <outside global> <outside local>
>
>
> This was static. So you don't know anything about which sessions is the
> client using ? is he translating web, ftp, telnet ?? The router
> translates all, but you don't see it.
>
> If you use "expandable", this translation will be expanded to PAT
> dynamically, so when the client sets up a session you will see in "show
> ip nat translation":
>
> <inside global> <inside local> <outside global> <outside local>
> <inside global:23> <inside local:23> <outside
> global:1233> <outside local: 1233>
> <inside global:25> <inside local:25> <ourside
> global:1345> <outside global: 1345>
>
> Which gives you an indication of which sessions the client is using....
>
> Regards,
> Geert
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Cooper, David
> Sent: dinsdag 13 juli 2004 19:57
> To: CCIE LAB List
> Subject: Nat Expandable
>
> Can anyone tell me what the expandable command at the end of an IP NAT
> inside/outside actually does? I can not find any good references on
> Cisco and it seems to be a fairly new command. Thanks!
>
> -David
>
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-- Carlos G Mendioroz <tron@huapi.ba.ar> LW7 EQI Argentina
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