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IT Interview Questions: What is a default gateway? What happens if I don't have one?
Information Technology (IT) Interview Questions and Answers
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IT Interview Questions: What is a default gateway? What happens if I don't
have one?
A gateway is a routing device that knows how to pass traffic between
different subnets and networks. A computer will know some routes (a route is
the address of each node a packet must go through on the Internet to reach a
specific destination), but not the routes to every address on the Internet.
It won't even know all the routes on the nearest subnets. A gateway will not
have this information either, but will at least know the addresses of other
gateways it can hand the traffic off to. Your default gateway is on the same
subnet as your computer, and is the gateway your computer relies on when it
doesn't know how to route traffic. The default gateway is typically very
similar to your IP address, in that many of the numbers may be the same.
However, the default gateway is not your IP address. To see what default
gateway you are using, follow the steps below for your operating system.
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