Network Address Translation (NAT) is the process where a network device, usually a firewall, assigns a public address to a computer (or group of computers) inside a private network. The main use of NAT is to limit the number of public IP addresses an organization or company must use, for both economy and security purposes.
Hole punching (networking) - Wikipedia Hole punching (or sometimes punch-through) is a technique in computer networking for establishing a direct connection between two parties in which one or both are behind firewalls or behind routers that use network address translation (NAT). To punch a hole, each client connects to an unrestricted third-party server that temporarily stores external and internal address and port information for What is a NAT firewall? | What to know - What is a Device connected to LAN <=>Home router NAT firewall <-> ISP <=> VPN server <-> Internet (all connection within the <=> are inside an encrypted VPN tunnel). VPN providers who offer a NAT firewall service place a NAT firewall between the VPN server and the internet so that all internet traffic is filtered through the NAT firewall.
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NAT is short for Network Address Translation.NAT is an Internet standard that enables a local-area network (LAN) to use one set of IP addresses for internal traffic and a second set of addresses for external traffic. A NAT box located where the LAN meets the Internet makes all necessary IP address translations.. The Purpose of NAT. NAT serves three main purposes: What are NAT and Firewall Traversals? - OnSIP
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Network Address Translation — 1:1 NAT | pfSense Documentation Aug 05, 2019 What is a NAT Firewall? - VPN Critic Oct 07, 2016 Network Address Translation — NAT Reflection | pfSense Nov 01, 2019 Cisco ASA Static NAT Configuration - NetworkLessons.com