Understanding of Gateways

Suppose your name is called Tiny (very small), you live in a big yard, your neighbors have a lot of small partners, Parents is your gateway. When you want to play with a little friend in the yard, as long as you shout his name in the yard, he hears it, responds to you, and runs out to play with you.

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but you Parents do not allow you to walk out of the door, you want to contact with the outside world, all must be by the parents (gateway) telephone to help you contact. If you want to find your classmate Xiao Ming chat, Xiao Ming lives in a far away in another yard, his home also has parents (Xiao Ming's Gateway). But you don't know the telephone number of Xiao Ming's home, but your teacher in charge has a list of all the classmates in your class and telephone number, your teacher is your DNS server . So you have the following conversations with your parents at home:

Little: Mom (or dad), I want to find the head teacher to check Xiao Ming's telephone number line? Parent: OK, you wait. (then your parents to your teacher hung a telephone, asked clearly Xiao Ming's telephone) asked, his family's number is 211.99.99.99

Tiny: Great! Mom (or dad), I want to find Xiao Ming, you can help me contact Xiao Ming.

Parent: No problem. (then the parents sent a request to the telephone office, the last one of course was transferred to the parents of Xiao Ming, and then his parents to the phone to Xiao Ming).

So you get in touch with Xiaoming.

If you know what a gateway is, Default Gateway It 's a good idea. It's like a room can have more than one door, a host can have multiple gateways. the default gateway means that if a host cannot find an available gateway, it sends the packet to the default designated gateway, which handles the packet. Default gateway . Default gateway general fill 192.168.x.1

Understanding of Gateways