http://www.cablemodemhelp.com/proxy_vs_nat.htm
Proxy is application level. NAT is address translation.
HTH,
Christopher Hollow
JJB wrote:
Thanks for your reply, But I must be thick headed this morning, because what you say below makes no sense to me. I checked out the 2 referenced descriptions and they say nothing about doing nat.
I have Lan with private ip address that send packets to public internet. How does an proxy server solve the private ip address versus my public ip address problem?
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED] Sent: Monday, February 02, 2004 11:28 AM To: JJB Cc: Jorn Argelo; [EMAIL PROTECTED] Subject: Re: proxies and firewalls
Are you saying you know of an proxy server that does the nat function?
Actually, the point of having proxies is *not* having to route. Your proxy machine should not be able to forward packets.
Roughly, there a two different sub-groups: Circuit layer and application layer proxies, names should be self explaining.
Example for an app layer gateway:
Port: fwtk-2.1 Path: /usr/ports/security/fwtk Info: A toolkit used for building firewalls based on proxy services
Example for a circuit level proxy:
Port: nylon-1.2 Path: /usr/ports/net/nylon Info: A Unix SOCKS 4 and 5 proxy server
Socks5 is already app layer, too, IIRC.
Cheers, J.
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