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Line connection router and setup steps:
1. Connect the line between the network cable, the router and the computer, and start the computer and the router equipment;
2. After starting the device, open the browser and enter it in the address bar to enter the wireless router settings interface. (If you can't get in, please look at the nameplate at the bottom of the router or the router instruction manual, the default settings of different models of routers are different.) )
3. An account and password to log in to the router appear in the settings interface, enter the default account and password admin, or refer to the manual;
4. After successful login, select the interface of the setup wizard, which will automatically pop up by default;
5. After selecting the setup wizard, a window will pop up to explain that you can set the basic parameters of the router through the wizard, and click Next directly;
6. Set up step by step according to the setup wizard, select the Internet mode, usually ADSL users choose the first PPPoE, if you use other network service providers, select the following two according to the actual situation, if you don't know how to choose, directly select the first item to automatically select, convenient for novice operations, click next after selection;
7. Enter the password applied for from the network service provider, and go directly to the next step after the input is completed; <>
8. Set the wifi password, try to make the alphanumeric combination more complicated, and it is not easy to be rubbed off the network.
9. After entering correctly, it will prompt whether to restart the router, select Yes to confirm the restart of the router, and you can access the Internet normally after restarting the router.
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It should be that the ISP network you are connected to assigned you an intranet address. You can only call the ISP and ask them for a public IP. Generally, as long as you hit **, they will change it for you.
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NAT hides the structure of the internal network and has the effect of "shielding" the internal host, but in practice, it may be necessary to provide an access to the internal network for the external network.
Hosting opportunities, such as providing a web server to an external network, or an FTP server.
The internal server function provided by the NAT device is to statically configure the public IP address.
The mapping between port number and private IP address port number.
Implement the reverse conversion of public IP addresses to private IP addresses.
As shown in the preceding figure, when a data packet from an external network user accessing an internal network server passes through a NAT, the NAT device searches for an address translation entry based on the destination address of the packet and converts the destination IP address and port number of the request packet to the private IP address and port number of the internal server. When the internal server rejects the response packet, the NAT device responds to the packet based on the existing address mapping'Convert the source IP address and port number to the public IP address and port number.
Configuration Ideas:
1. Enable. NAT ALG function to ensure that a specific application-layer protocol can traverse NAT normally.
2. Enter the Internet connection.
interface. 3. Configure NAT Server so that the device can query the private network information of the corresponding server according to the public network information.
When a large number of users on the internal network need to access the external network, you can configure an access control list.
In association with an address pool (or interface address), IP packets with certain characteristics select and use the address in the address pool (or interface address) to establish a dynamic address mapping relationship. In this case, the resources of the address pool specified in the association are selected from the internal network packets and released to other users after the session ends.
Configuration Ideas:
1. Configure ACL rules that control the address translation range.
2. Configure ACL rules to associate with public IP addresses. It is divided into address pool and interface address mode (this method is called the Easy IP function).
Address pool mode
a.Configure a public address pool.
b.Go to the interface view.
c.Configure the association between ACL rules and address pools.
Easy IP mode
a.Go to the interface view.
b.Configure the interface address.
c.Configure the association between ACL rules and interface addresses.
The network speed of the connection route is slowed down because the Access mode is incorrectly set. >>>More
Connect the network cable to the WAN port of the wireless router, and then set up the wireless router >>>More
You need to set the dial-up type and enter the password for surfing the Internet. >>>More
Look at the router manual, it is very detailed, I open the browser, enter enter, and then enter the username and password, both are admin [default].
The ADSL cat and the router are not connected, first solve the connection problem, the connection line between the router and the cat must be connected, the router is plugged into the WAN port, and then try. See if the crystal head socket light is on, if it is not on, change a network cable, or if there is a problem with the device port, try to change the port, try to clone the MAC in the router, clone the MAC of the router into the MAC of the computer you surf the Internet.