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Network Address Translation

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ALSO CALLED: NAT
DEFINITION: Iptables is a generic table structure that defines rules and commands as part of the netfilter framework that facilitates Network Address Translation (NAT), packet filtering, and packet mangling in the Linux 2.4 and later operating systems. NAT is the process of converting an Internet Protocol address (IP address) into another IP address. Packet filtering is the process of passing or blocking packets  … 
Definition continues below.
Network Address TranslationReports
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WHITE PAPER: There are two basic types of addresses used in Local Area Networking (LAN): logical addresses and physical addresses. Ethernet is the most common LAN and is the example used in this document. Understanding the differences of how the two addresses are used is the focus of this discussion.
Posted: 14 Jun 2013 | Published: 20 May 2013

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ANALYST REPORT: Analysts Clive Longbottom and Bob Tarzey discuss all things network related in this series of 12 short business focused articles.
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WHITE PAPER: Unified Communications (UC) can be viewed as another set of data and protocols utilizing IP networks. From a security perspective, it is very similar to other IP data services. This document describes the security issues that organizations should consider as they deploy UC, and offers Polycom's recommendations for implementing secured UC.
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NETWORK ADDRESS TRANSLATION DEFINITION (continued): … Iptables is a generic table structure that defines rules and commands as part of the netfilter framework that facilitates Network Address Translation (NAT), packet filtering, and packet mangling in the Linux 2.4 and later operating systems. NAT is the process of converting an Internet Protocol address (IP address) into another IP address. Packet filtering is the process of passing or blocking packets at a network interface based on source and destination addresses, ports, or protocols. Packet mangling is the ability to alter or modify packets before and/or after routing.Iptables and netfilter are the successor to ipchains and ipfwadm in earlier versions of Linux. Netfilter and iptables are often combined into the single expression netfilter/iptables, which refers to the Linux 2.4 and later subsystems for NAT, firewalling, and advanced packet processing.
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