Extranet and Intranet
2019-11-16 11:22:37 by rushing
1, the network
① computer within the network who need to go through a switch, a router to access the Internet (external network).
② Because the external network IP tight, and now the widespread use of computers makes the external network IP simply not enough to produce within the network to solve this problem.
③ router requires only one external network IP, will be able to provide the following number of computer networking. Because different IP network can be reused. (Such as Internet cafes only one external network IP)
④ IP network types:
10.0.0.0~10.255.255.255
172.16.0.0~172.31.255.255
192.168.0.0~192.168.255.255
2, external network
① outside the network without going through a router or switch, directly connected to the Internet and computers.
② ordinary people can not have external network IP, because a person with a foreign IP is simply a waste. So we usually go to the Internet through the network (connection Internet).
③ external IP network typically used for businesses, schools and other institutions.
④ WAN IP are what it? In addition to the IP network is the external network IP.