[c-nsp] NAT question

[Brian Turnbow]

You can also use nat on a stick 
http://www.cisco.com/en/US/tech/tk648/tk361/technologies_tech_note09186a0080094430.shtml 

Brian

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Marc Steiniger
Sent: martedì 15 novembre 2005 12.43
To: Raz
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] NAT question

Hi Raz,

The easiest solution is to configure your internal DNS server to
resolve to the internal (LAN, private) IP address, while your external
DNS servers resolve to the public IP address.

Should this not be possible, I believe it would ultimately this is
possible with dns fixup PIX 6.3 and newer (or 'alias' with 6.2 and
older).  Simply create your static mapping appending the word "dns" to
the end.  This will result in DNS record translation:

static (inside,outside) x.x.x.x y.y.y.y dns

where x.x.x.x is the public IP address, and y.y.y.y is the private LAN address.

HTH
Marc



On 11/15/05, Raz <raz at mailbox.net.uk> wrote:
> Hi,
>
>  I would like to know if  I can access an email server running behind a
> NAT router with static mapping from within the LAN by using mail servers
> FQDN e.g mail.xxx.com existing setup is
>
> Outside Client X ---> Router-with-NAT------>Mail server sitting on LAN
>
> what if the same user Client X tries to access the mail server by using
> its hostname mail.xxx.com which resolves to NAT routers public IP
> address, I would like to know is it possible to let the Client X use the
> same hostname regardless of its source network either publically or from
> within the LAN.
>
>
> Cheers
>
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