How Gateway is different from Routers?

A gateway operates at the upper levels of the OSI model and translates information between two completely different network architectures or data formats.
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Jai Singh

  • Dec 10th, 2006
 

Router is device that work at third level of OSI model

gateway work at presentation layer of OSI model

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deven.pawar

  • Jul 18th, 2007
 

I Beg to differ.

According to me A device that determine the optimal path along which network traffic should be forwarded. Routers allow different networks to communicate with each other. They forward packets from one network to another based on network layer information. A gateway can interpret and translate the different protocols that are used on two distinct networks. Unlike routers that successfully connect networks with protocols that are similar, a gateway perform an application layer conversion of information from one protocol stack to another.

nandanmehta

  • Jan 4th, 2010
 

Gateway is nothing but the final point  that the data crosses finally in a network,it is mostly used for user authentication which router cannot provide.

Gateways can provide authentication to anonymous users, it is used when u have only one single network.

It is less costly.

Whereas router is used for routing between different networks, providing routing tables and deciding best path for the data to travel.

It is used when you have more than one networks.

It is more costly.

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Piyush Verma

  • Nov 3rd, 2010
 

Router is only used to transfer a packet from one network to another but if protocols of both side networks are diffrent then Getway is used to translating protocols.
Ex: WAN to LAN

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