A、Connect the wireless access points to a dedicated subnet. Allow the subnet direct access to the Internet，but not to the company network.Require company users to establish a VPN to access company resources

B、Install Internet Authentication Service （IAS） on a domain controller.Configure the wireless access points to require IEEE 802.1x authentication

C、Establish IPSec policies on all company servers to request encryption from all computers that connect from the wireless IP networks

D、Configure all wireless access points to require the Wired Equivalent Privacy （WEP） protocol for all connections. Use a Group Policy object （GPO） to distribute the WEP keys to all computers in the domain