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| | Network address translation - Wikipedia, the free encyclopedia |
 | | In computer networking, the process of network address translation (NAT, also known as network masquerading or IP-masquerading) involves re-writing the source and/or destination addresses of IP packets as they pass through a router or firewall. | | | In a typical configuration, a local network uses one of the designated "private" IP address subnets (such as 192.168.x.x or 10.x.x.x), and a router on that network has a private address (such as 192.168.0.1) in that address space. | | | NAT with port-translation comes in two sub-types: source address translation (source NAT), which re-writes the IP address of the computer which initiated the connection; and its counterpart, destination address translation (destination NAT). |
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http://en.wikipedia.org/wiki/Network_Address_Translation
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| | Configuring Network Address Translation |
| | NAT is configured on the router at the border of a stub domain (referred to as the inside network) and a public network such as the Internet (referred to as the outside network). | | | In a typical environment, NAT is configured at the exit router between a stub domain and backbone. | | | Figure 130 illustrates a router that is translating a source address inside a network to a source address outside the network. |
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http://www.cisco.com/univercd/cc/td/doc/product/software/ios113ed/113ed_cr/dial_c/dcprt11/dcnat.htm
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| | Howstuffworks "How Network Address Translation Works" |
| | Network Address Translation allows a single device, such as a router, to act as an agent between the Internet (or "public network") and a local (or "private") network. | | | An IP address (IP stands for Internet Protocol) is a unique 32-bit number that identifies the location of your computer on a network. | | | With the explosion of the Internet and the increase in home networks and business networks, the number of available IP addresses is simply not enough. |
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http://www.howstuffworks.com/nat.htm
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| | White Paper:Network Address Translation |
| | NAT of Inside Local Addresses In this scenario a private network was set up with its own private IP address scheme, and NAT is configured on a router connecting the inside (local, 10.1.1.0) network to an outside (global, 192.50.20.2) network, using the public Internet addressing scheme. | | | NAT can be configured in a static or dynamic way. | | | The IP address in the IP header is replaced with the new inside or outside IP address.The port numbers in the TCP/UDP header is replaced with the new port if port translation is enabled. |
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http://www.enterasys.com/products/whitepapers/ssr/network-trans
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| | Linux Network Address Translation |
| | With NAT, the headers of IP packets that come into one machine are re-written, and forwarded to the least-busy database server in the cluster. | | | If, however, the database queries are all "read-only" queries (they do not modify the database), then it is possible to distribute the load to several machines. | | | One important componenet of this is address takeover, where the backup machine takes over the IP address(es) of the failed machine. |
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http://linas.org/linux/load.html
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| | Network Address Translation: Hiding in Plain Sight |
| | NAT functionality is built into devices such as network routers, firewalls, ISDN routers and standalone NAT devices. | | | But at the same time, NAT is becoming more common on devices that examine IP packets, such as firewalls and routers; since these devices are already in the packet, the processing to swap addresses is minimal. | | | We used all three NAT methods with great success, both in test beds at Network Computing's Syracuse University Real-World Labsý and on production networks. |
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http://www.networkcomputing.com/917/917ws2.html
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| | Network Address Translation |
| | Packets travel to the NAT router, which rewrites the packet header so that it appears that the packets are coming from the router. | | | A NAT router, either a computer or a dedicated hardware "appliance" has connections both to the Internet and to a network with a private address range. | | | The NAT router maintains a table of current connections, so that replies to the requested information can be forwarded back to the originator on the private network. |
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http://www.stanford.edu/group/networking/lnaguide/docs/nat.html
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| | [No title] |
| | NAT is a router function that can be configured as shown in figure 1. | | | However, NAT translates the source address 10.33.96.5 of the IP header with the globally unique 198.76.29.7 Egevang & Francis [Page 3] RFC 1631 Network Address Translator May 1994 before the package is forwarded. | | | This is because the global address must be advertised in the intra-domain routing algorithm. |
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http://www.ietf.org/rfc/rfc1631.txt
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| | PF: Network Address Translation (NAT) |
| | NAT is necessary when the number of IP addresses assigned to you by your Internet Service Provider is less than the total number of computers that you wish to provide Internet access for. | | | This is also the address that is replaced in the IP header. | | | Since NAT is almost always used on routers and network gateways, it will probably be necessary to enable IP forwarding so that packets can travel between network interfaces on the OpenBSD machine. |
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http://www.openbsd.org/faq/pf/nat.html
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| | Network Address Translation on Solaris 7 and 8 |
| | It would be possible to assign a public IP address, probably from the ISP's address space, to each machine on a local network and arrange for the Solaris dial-up gateway to act as a router, forwarding packets from the local machines which arrive on its local network interface out through its dial-up network interface. | | | NAT configuration rules are stored in the file /etc/opt/ipf/nat.conf and this file is created in the next step. | | | The solution is to run network address translation software on the Solaris system. |
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http://www.kempston.net/solaris/nat.html
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| | Cisco - Network Address Translation on a Stick |
| | This requirement for NAT has not changed, but this document demonstrates how you can use a virtual interface, otherwise known as a loopback interface, and policy-based routing to make NAT work on a router with a single physical interface. | | | It is important to keep in mind that this configuration can reduce the performance on the router running NAT because the packets may be process-switched through the router. | | | The term "on a stick" usually implies the use of a single physical interface of a router for a task. |
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http://www.cisco.com/warp/public/556/nat-on-stick.html
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| | Network Address Translation - Computerworld |
| | NAT shouldn't be considered a replacement for a firewall, though simple devices implementing NAT can be useful for protecting small office and home office networks. | | | Inbound packets are sent to the NAT device's IP address, and the device changes the destination packet header from its own Internet address to the private network address of the true destination host. | | | NAT is often positioned as a security solution. |
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http://www.computerworld.com/networkingtopics/networking/lanwan/story/0,10801,57780,00.html
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| | What is NAT? - A Word Definition From the Webopedia Computer Dictionary |
| | Basic Network Address Translation or Basic NAT is a method by which IP addresses are mapped from one group to another, transparent to end users. | | | NAT and NAPT are techniques used to share and hide private IP addresses on edge devices like routers and firewalls. | | | This memo defines a portion of the Management Information Base (MIB) for devices implementing NAT function. |
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http://www.webopedia.com/TERM/N/NAT.html
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| | Network Address Translation > Introduction |
| | NAT, as it is commonly implemented today, is described in RFC3022. | | | If you were to use this address space between your Internet router and your firewall, the address space would break down into the host numbers listed in Table 9-1. | | | It is a technology that allows hosts to transparently talk to one another with addresses that are agreeable to each other. |
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http://www.informit.com/articles/article.asp?p=24661
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| | Public address - Network address translation - Wikipedia, the free encyclopedia |
| | RFC 1918 - Address Allocation for Private Internets. | | | RFC 1918 (rfc1918) - Address Allocation for Private Internets | | | The public address system will be used for general building emergencies and other library and university purposes, to quickly contact all building occupants |
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http://timesengine.com/q/public-address.html
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| | The page cannot be found |
| | The page you are looking for might have been removed, had its name changed, or is temporarily unavailable. | | | If you reached this page by clicking a link, contact the Web site administrator to alert them that the link is incorrectly formatted. | | | Make sure that the Web site address displayed in the address bar of your browser is spelled and formatted correctly. |
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http://www.absoluteastronomy.com/encyclopedia/n/ne/network_address_translati...
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