Generally this is actually a public network ip ip, make no mistake, think too much! ! !
Specific process:
1, when the general use of broadband Internet access, networking is simple: cable ----> Cats -----> Terminal.
2, terminal access to the Internet is due to telecom operators will be shipped in a public network IP.
3, but generally living in a big house or in an apartment a few tenants when data needs to be split.
4, networking: cable ---> cat ---> --- router> terminal, whereby the intermediate router is added to achieve a diversion function.
5, one end router IP public network, that is generally a WAN port, the LAN port is the remaining few tenants or other access terminals. The router will assign them private ip.
6, when the computer to the Internet, the DNS resolution is performed by first ip corresponding to the URL, and transmits the data through the public network routing ip is converted into, and at this time a temporary route will assign its own port, and then sent to the cat, to a digital to analog conversion via the World Wide web, WWW received after receiving the request, the page needs to re-send the same to the first path back to the terminal in the last turn cat router. Intermediate, then we should add finer and out of the gateway.
Terminal -> Local Gateway -> Routing -> Cats -> internet -> Cats -> Routing -> Local Gateway -> Terminal.
Light cat, routers, switches Connection:
Is now widely: pull out an optical fiber (cable) -> optical modem -> router -> switch (optional router integrated switch functionality) -> terminal.
