Is NAT can provide some kind of protection?

Michel de Nostredame d.nostra at gmail.com
Wed Jan 12 19:33:23 UTC 2011


On Wed, Mar 21, 2007 at 2:41 AM, Tarig Ahmed <tariq198487 at hotmail.com> wrote:
> We have wide range of Public IP addresses, I tried to assign public ip
> directly to a server behined firewall( in DMZ), but I have been resisted.
> Security guy told me is not correct to assign public ip to a server, it
> should have private ip for security reasons.
>
> Is it true that NAT can provide more security?
>
> Thanks,
>
> Tarig Yassin Ahmed

I assume you are talking about the protection to the current running
"public facing" servers, hence the NAT could not provide more
protection to them compares to a proper configed firewall.

However, for a small business who does not have its own ASN & Provider
Independent IP block(s), a NAT (NAT44 and NAT66) could provide lots of
protection on IT resources when there is a need to install multiple
Internet access lines for providing quickly failover (manual or
automatic, doesn't matter) and/or load-sharing capability to end
users.

--
Michel~




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