Nat; General Information - MikroTik RouterOS v2.9 Reference Manual

NAT

Document revision 2.8 (Tue Feb 28 15:15:00 GMT 2006)
This document applies to MikroTik RouterOS V2.9
Table of Contents
Table of Contents
Summary
Specifications
Related Documents
NAT
Description
Property Description
NAT Applications
Description
Example of Source NAT (Masquerading)
Example of Destination NAT
Example of 1:1 mapping

General Information

Summary
Network Address Translation (NAT) is a router facility that replaces source and (or) destination IP
addresses of the IP packet as it pass through thhe router. It is most commonly used to enable
multiple host on a private network to access the Internet using a single public IP address.
Specifications
Packages required: system
License required: level1 (number of rules limited to 1) , level3
Home menu level: /ip firewall nat
Standards and Technologies:
Hardware usage: Increases with the count of rules
Related Documents
• Software Package Management
• IP Addresses and ARP
• Routes, Equal Cost Multipath Routing, Policy Routing
• Filter
• Mangle
• Packet Flow
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IP , RFC1631 , RFC2663
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