What differentiates a gateway from a router?

Answer

Although both gateways and routers are a part of the process of regulating traffic between two networks, they are different from one another: gateways regulate traffic between two different types of networks, while routers regulate traffic between two similar networks. Even though gateways and routers perform similar functions, this difference means that they are used in different settings and for different reasons.

When a corporation or another group has two different networks that it would like to have interact with one another, it's necessary to regulate and facilitate the traffic between the two. This can be done by taking either a router or a gateway and outfitting it with several network cards. The router or gateway is then placed in between the two networks so that the process of regulation can begin.

However, before determining whether a router or gateway is needed, these groups need to evaluate the networks they are regulating. For example, a computer that is accessing the Internet through the standard Internet Protocol can be used with a router because it uses the same type of networking protocols as the Internet does. But for other combinations of networks, such as a computer with an unusual mainframe environment attempting to join a network of other computers, a gateway is needed.

Q&A Related to "What differentiates a gateway from a router?"
"Gateway" is an older name for a router. In any case, the basic role of a router (or gateway) is to connect different networks.
http://wiki.answers.com/Q/What_is_the_difference_b...
Default gateway is description from the client side, it is interface on my local network which gets me out to the other network, device that is conecting networks is called the router
http://www.experts-exchange.com/Q_21029876.htm
Hello, A router is a device that is required to interconnect two different types of networks. A gateway is a device that is the central point of your network to which the traffic
http://en.allexperts.com/q/General-Networking-Lan-...
The difference is basically that a gateway is one to one and a router is many to many. Companies like to call things routers when they are only really gateways, so the distinction
http://answers.yahoo.com/question/index?qid=200703...
1 Additional Answer
Ask.com Answer for: difference between gateway and router
Difference Between Gateway & Router
The primary difference between gateways and routers is that a gateway is the single point of access to computers outside your network. Depending on the complexity of your network, gateways can only be one or a few since they provide the exit and entry... More »
Difficulty: Easy
Source: www.ehow.com
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