Summary

The key to a successful implementation of secured wireless technologies is to begin with the end in mind. Never use a wireless LAN without some type of encryption, and be mindful of the type of encryption you plan to use. The standard WEP encryption should be the minimum level of encryption considered with even higher levels of encryption like 802.1x as the recommended norm.

When planning a wireless LAN implementation, an RF site survey can validate the number of access points needed to achieve the appropriate coverage in the facilities being used. Look at end user requirements such as the ability to roam throughout the office while maintaining a signal versus the expectation of a static position of users working wireless from just an office or conference room. These are important factors when determining access point positioning and overlap coverage.

Because Windows Server 2003 has built-in 802.1x encrypted wireless support, it requires the client system to be running Windows XP Service Pack 1 or later. The existing system configurations become important in the implementation of a secured wireless environment. An organization has the choice of lowering security to the lowest common denominator, and thus increasing security risk; or the organization has the ability to require all client systems to meet a minimum system configuration standard to raise the level of supported wireless security on the network.

Lastly, creating wireless access policies and enforcing the policies becomes extremely important. Keep your network secure by keeping everyone informed of the security risks of setting up their own rogue access points. Perform periodic network audits by walking around with your laptop or pocket PC scanning for networks. Double-check each of the access points to ensure that they are configured and working correctly.

By designing a secure network, and then monitoring and managing the secured infrastructure, an organization can improve its level of security support throughout the organization.