Disable the DHCP function.

When we use the DHCP function, we will find many network problems. In some designs that do not use this function, how can we reduce security threats? Here we can try to disable the DHCP function. What should I do? Let's analyze it.

Disable DHCP.

DHCP can automatically assign IP addresses to each computer in the wireless LAN. You do not need to set IP addresses, subnet masks, and other required TCP/IP parameters. If DHCP is enabled, you can easily use your wireless network. Therefore, it is necessary to disable DHCP for wireless networks.

Set the DHCP server to "disabled" under the "DHCP server" setting of the wireless route security function. Test results: Because the IP address and DNB server information cannot be obtained, the network is still unavailable even if the wireless network signal can be found.

Enable MAC address and IP address filtering

When you enable the MAC address filtering function, note that, in the filter rule, you must select the option "only allow valid MAC addresses in the configured MAC address list to access the wireless network. In addition, if DHCP is disabled in the wireless LAN.

We recommend that you set a fixed IP address for each computer that uses wireless services, and then enter these IP addresses in the IP address list. After the IP address filtering feature of the wireless route security function is enabled, only users with IP addresses in the list can access the network normally, and others can only be stunned. Test Results: After MAC address filtering and IP address filtering are configured, even if some people barely intrude into the wireless network, the MAC address and IP address are disabled by the filtering function of the wireless route security function, therefore, the wireless network is still unavailable.

In fact, during the actual test, we found that any method mentioned above can protect your wireless network. Therefore, ordinary users do not have to worry about it and can use it with confidence. In addition, if you use public wireless networks at airports, conference rooms, and other public places, remember to disable your own documents and print sharing functions, this type of shared documents can be easily accessed by another client in the same LAN.