NAT Ccna

Feb 5, 20099 likes4,321 views

This document discusses Network Address Translation (NAT) and Port Address Translation (PAT). It defines key NAT terms and private IP address ranges. It then describes the main features of NAT and PAT, including static and dynamic NAT mappings and how PAT uses port numbers to map multiple private IPs to a single public IP. The document provides examples for configuring static NAT, dynamic NAT, and PAT. It also discusses troubleshooting NAT and changing dynamic NAT configurations.

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This document provides an introduction to Network Address Translation (NAT) and describes a simple simulation configured to allow hosts from a private network to access a server through its public IP address. NAT is designed to separate private IP addresses from public IP addresses. The simulation involves configuring two routers, with one router using static NAT with Port Address Translation (PAT) to allow a server to be accessed via its public IP, and the other router using dynamic NAT and PAT to allow multiple private IPs to access the network. This demonstrates how NAT can translate private network addresses to access resources externally using public IP addresses.

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