How to restrict the computer's IP address

What if the computer's IP address is restricted?

IP address is the basis of data transmission in IP network, it identifies a connection in IP network, a host can have more than one IP address. IP addresses in IP packets remain unchanged in the network transmission. We sometimes encounter an IP-restricted situation, at which point we will find that we cannot connect to the Internet.

Next, let's look at how to set up IP and DNS manually.

Manually set IP and DNS

1. First, we must find an IP address that is not yet in use on the local area network. Usually in the LAN, there will be many computers, only each computer's IP address is not the same to ensure that the computer normal networking. You can search on the Internet "LAN viewer" software to obtain the current LAN assigned IP address list, so as to find the IP address has not been allocated.

2, access to the LAN has not yet been allocated IP address, you can set this IP address to the current IP address limited computer. Open Local Area Connection, one of which is to right-click the taskbar Network icon, select Open Network and Share center entry, or access through Control Panel dependencies.

3. Right-click "Local Area Connection" and select "Properties" from the pop-up menu.

4, then select the "TCP/IP" item, and click the "Properties" button.

5, and then in the Open window, check the "Manually set IP Address" and "Manually set up DNS" items, and set. Then it's OK to surf the Internet. For the method of obtaining DNS, see the following.

Access to gateways and DNS

1, open the "Run" dialog box (press Win+r to open), input cmd into the Msdos interface.

2, in the open Msdos interface input "Ipconfig/all" can be viewed to "gateway address" and "DNS server address."

Eliminate ARP attacks and keep the network open

1, we can borrow a lot of network management software to achieve ARP detection and troubleshooting. Search directly in Baidu "LAN Security Guardian" program.

2, run the software, select the type of network adapter you want to monitor.

3, then in the main interface of the program check "found ARP attack output alarm signal" and "found ARP attack automatic Quarantine" item.

4, finally click the "Start Monitoring" button. In this way, when ARP attack exists in LAN, it automatically isolates and outputs the alarm signal, which can effectively protect the normal flow of the network.