Solve local network control, network restriction ARP binding, and ARP binding Problems

When you have more than N people sharing a Wi-Fi network, the unavoidable problem is to get the network speed. Then someone will try to set the network speed to multiple points, and someone will try to control the LAN, the general approach is to implement ARP spoofing to control others' network speeds. Don't worry, we can statically bind the relationship between the gateway IP address and the MAC address, so that it cannot be spoofed. We can do this:

When an IP address or MAC address is bound under win7, the system prompts "ARP entry addition failed: Access Denied

1. We all know that You can bind an IP address and a MAC address directly by running the ARP-s command. However, if you cannot run ARP-s to bind a static MAC address in win7, the system prompts "ARP entry addition failed: access denied." (The ARP entry addition failed: access is denied .).
   

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1. Binding IP addresses and MAC addresses in Windows 7 differs from XP. At this time, Windows 7 users need to use the netsh command. The procedure is as follows:

   1. Enter netsh I show in cmd.

   
   

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1. Then find the "idx" corresponding to "Local Connection" (my name is "11", and the numbers following neighbors are the same as here .)

   2. Enter netsh-c "I" add neighbors 11 "gateway IP" "MAC address" in cmd. Here 11 is the idx number.

   OK!

   ARP-A again to see if it has been bound?

   Similarly, ARP-D on Windows 7 cannot be used to completely delete the binding. netsh-c "I" delete neighbors idx must be used (idx is changed to the corresponding number) to delete the MAC address binding.

   1. Run the ARP-a command to view the physical address of the Mac Nic of the gateway.

   2. Run the netsh I show in command to view the idx number of the local connection.

   3. Use the netsh-c "I" add neighbors command to bind the local connection idx "gateway IP" and "Gateway Mac ".

   4. Use ARP-a to view the result

Note: When you want to connect to other WiFi devices, clear the configuration. Otherwise, you may not be able to access the Internet.