Currently, IPv4 WLANs are widely deployed. If many IPv6 packets exist on an IPv4 WLAN, the performance of the WLAN is affected, and the CPU processing capability of devices will also be degraded. To improve performance of a pure IPv4 network, you can configure devices on the network to not process STA IPv6 services. After the function of processing STA IPv6 services is disabled, the AC and APs do not process IPv6 packets of the wireless side.