PPPoE obtains IP address confusion

Stand-alone Internet access - after disconnecting the network (turning off the ADSL cat), refer to change:

1. Take Win10 system as an example, right-click the network icon in the desktop taskbar, and select the "Open Network and Sharing Center" option.

2. Click on the network you are currently connected to.

3. Select the Details button and click to view the IP address.

When using PPPoE to connect to the Internet, you do not need to use an IP address, you only need to log in with your account and password, and you can automatically get an IP address and DNS server address.

The first thing depends on whether your set-top box provides PPPoE access mode, if it is only static IP or DHCP Internet access, you need to buy a router, dial up Internet access through the router, and then connect the set-top box to the router to set a fixed IP.

First of all, confirm that the TV support does not support PPOE dial-up Internet access,If not,You should mention the wireless card,It means that you have a wireless router at home,Then take a network cable directly,Connect the computer to the wireless router,The rest do not need to operate!

Ping DNS or look up the peanut shell domain name, and then connect to the router PPPoE dial-up. After the port ** is done on the router, the public IP displayed in the WAN port information of the router is the real IP.

In order to save bandwidth costs, some operators will use other IP addresses to access the Internet through relatively cheap lines through NAT for some of the user's network requests. NAT refers to network address translation, and public IP can also be NAT.

NAT stands for "Network Address Translation" in Chinese, and is an IETF (Internet Engineering Task Force, Internet Engineering Task Force) standard that allows an entire organization to appear on the Internet with a public IP (Internet Protocol) address. As the name suggests, it is a technology that translates an internal private network address (IP address) into a legitimate network IP address.

An intranet IP address is an IP address used by an enterprise or a personal computer, and is not allowed to appear on the public network.

For example, a Class A private IP range.

Class B private IP range.

Class C private IP range.

All of the above can be used internally or on a PC, but the number of IP addresses that can be used is different.

As mentioned above, intranet IPs are not allowed to appear on the public network, and the intranet (private network) is designed to save IP address resources. To connect to the Internet, you must use a valid public IP address. The external IP is provided by the network operator, and the conversion of the internal IP to the external IP is realized by the router, and the general router has a built-in NAT (network address translation) function, and can share multiple computers to access the Internet at the same time (here the PAT is used that is, port overload, which is a kind of NAT).

When a computer accesses the Internet, the router will convert its IP address into a legitimate Internet IP to achieve Internet access.

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