Xen users - Aug 2008 - R: Re: route or nat

>Briefly, routing is the process that decides where an IP packet should 
>go 
to next.  NAT, on the other hand, re-writes the IP packet source or 
>destination address.  "NAT" is short for "Network Address
Translation"
>and 
is typically used to hide machines behind firewalls (source-NAT,
>SNAT) or 
redirect traffic to some other machine (destination-NAT, DNAT,
>sometimes 
called port-forward).

ok, i understand SNAT and DNAT

i ask you when is better 
use route and when nat?

>> I''m sorry for my bad english
>>   
>Your English 
is much, much better than my Italian!

Is true, but is better know english and 
not italian. :-D
>
>jch
thanks
riccardo marfisi
>
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On Wed, Aug 13, 2008 at 5:35 AM, rmarfisi@inwind.it <rmarfisi@inwind.it>
wrote:
> ok, i understand SNAT and DNAT
>
> i ask you when is better
> use route and when nat?
just like with ''real'' networking, you use routing when you
want to set
the servers with ''public'' IP numbers, and NAT when you want to
set
''private'' IP numbers, maybe sharing one (or a few) public IP
numbers

-- 
Javier

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