Router interface IP address issue

When setting, use a network cable to connect the computer and the router separately, connect the network cable to the port of the router, do not connect to the network when setting, connect, open the web page Enter 192,168,1,1, enter. Enter the username and password admin, enter the router's settings interface, find the network parameters, change the router's LAN port IP address to 192,168,3,1, and then save, the router will restart, the restart is complete, you open the web page and enter 192,168,3,1, you can enter the router's settings interface, click the setting wizard, and set it to dynamic IP mode. The next step is to add a password, and then click Restart, that's it, it's set, the network cable is connected to the WAN port of the wireless router, and it's OK.

Is it that your company uses wireless routing, and the wireless signal of the wireless router is not encrypted by someone else's network. If yes, you can encrypt your wireless router's wireless signal so that there won't be so many people connecting to your router.

Generally, the interface address of the router is set to the gateway, and the interface address and the host address are in the same subnet. So there's nothing to talk about occupying the host address.

The network segment of f0 1 is,Obviously, f0 0 is also in this network segment.。。 Change the number of bits in the mask of f0 1, your original number of bits is too large.

This is not possible, because ordinary routers only have one WAN interface, which can only refer to one WAN parameter.

--Contains more than just network segments.

There are 2 reasons for this:

For example, if you dial up PPPoE in the following figure, you will get the intranet IP address of the network provider.

2: If the network company uses the automatic dialing function for the access device, such as the optical modem and ADSL, the router does not need to dial again, and the WAN port obtains the IP assigned by the optical modem DHCP. Generally, the WAN port of the router is configured to obtain IP addresses in static or dynamic mode.

Static IP needs to manually set parameters such as IP, mask, gateway, DNS, etc.; Dynamic IP is not required and can be obtained automatically.

3. The ipconfig command queries the local IP, which is assigned to the local computer (computer) by the DHCP service of the connected router. Illustration:

Take a screenshot to see how and what it looks like.

The meaning of the router WAN port is set incorrectly.

After connecting to wifi, we find that there is no Internet connection, we first confirm whether others can access the Internet, and if others cannot access the Internet, restart the router. First, open "Settings" to turn on the airplane mode, wait for a few tens of seconds, and then turn it off.

2.If you still can't access the Internet, find the name of the route you are connected to under the Wi-Fi page and select Ignore this network.

The IP address of the router is set to allow the router to generate a routing table based on the IP address set, and only when there is a correct routing table can the router connect to the network normally.

As we all know, routers are three-layer devices, which work at the network layer, according to the network layer"IP protocol"Each device connected to the network needs to have a unique identity, which is what we call an IP address, so the router must have its own IP address in order to work properly at the network layer.

The switch we use, it is a layer 2 device, working at the data link layer, and is addressed by MAC, which is a fixed address written in the hardware, so you don't need to configure it.

A router is required for the connection between the two networks.

For example, many companies have an internal LAN, and then connect to the WAN through the LAN, so there must be routing equipment between the WAN and the LAN, and the WAN end of the router (the port that connects to the WAN) must be configured with the WAN IP, and the LAN end (the port connected to the LAN) must be configured with the LAN address. It's the same with connecting multiple networks.

What the landlord said"Router IP address"with"The IP address of the port"In fact, it is the IP address of the WAN port and LAN port of the router, to put it bluntly, they all belong to the port IP address, but the network connected to the two ports is different, and the address configuration of the router has to enter the port configuration.

The router exchanges data between two ports according to the IP protocol, so as to achieve the purpose of data communication between two or more logically disconnected networks.

By the way, the router can also select the route of information transmission according to the routing protocol, so that the information can be transmitted to the destination as quickly and reliably as possible.

The IP address of the router's WAN interface is determined, and it is used to communicate with other devices, and the IP address of the router's LAN interface is the IP address of a network segment, which is used to indicate that it is connected to a certain network segment. The IP address is set for normal communication through the IP protocol, which involves too much, and it is better to read professional books.