RE: RE: NAT external/Public IP

["David Gillett" <gillettdavid () fhda edu>]

> Without NAT you 
> may require to inject external IP/subnet into the internal 
> network. 

  No -- that's not how networking with TCP/IP works.

  Responses to those packets can almost certainly rely on 
default routing back to the Internet.

David Gillett


> -----Original Message-----
> From: listbounce () securityfocus com 
> [mailto:listbounce () securityfocus com] On Behalf Of 
> smarts_buy () yahoo com
> Sent: Saturday, October 27, 2007 12:57 AM
> To: security-basics () securityfocus com
> Subject: Re: RE: NAT external/Public IP
>
> My query is more abt the requiremnt for NAT the external IP 
> coming into the enterprise network like bank. Without NAT you 
> may require to inject external IP/subnet into the internal 
> network. Does this pose any security risk? We do hide our 
> internal IPs.