Wireless Networking at VCU

Client Guide: Know your ABGs

The VCU wireless network is available for use by anyone in the VCU Community. You will need certain hardware to access the wireless network. Some devices will require the use of a PCMCIA-type wireless network card. Other devices may already have the wireless hardware integrated into the system when you buy it. Either type will work well, but you need to know your abg's to know what standard to use:

Currently all wireless access points at VCU use the 802.11b wireless standard. This is the most commonly available type of card and is used in most hotspots through out the country. At a minimum, make sure your wireless equipment is compatible with 802.11b.

The newest equipment is being offered with 802.11g wireless networking. The 802.11g standard offers higher speed and is compatible with 802.11b access points. This is the recommended option if you are making a new purchase and a "g" option is available. If you already have a "b" card do not worry about replacing it at this time. It is anticipated that VCU will shift to 802.11g access points in the next few years.

Another available option is 802.11a. 802.11a provides a number of technological advantages over the other standards, but at the cost of higher cost and comparatively fast battery drain. There are a few access points on campus that support both a and b wireless standard. There are dual mode cards that you can purchase which support both "a" and "b" (or "g") standards. A dual mode card will provide the most flexibility, but is not generally necessary. Note that 802.11a may be a requirement in the School of Pharmacy due to their curriculum needs - please check with the School if you anticipate taking classes there.

Wireless Insecurity

Wireless networking is inherently insecure. Without added security measures, a knowledgeable user could capture and decode any data transmitted over the wireless network, including IDs, Passwords, credit card info, and so on. Be careful when using wireless networks and don't use them for transmitting sensitive information.

In August 2003 VCU will implement a security service on the wireless network called a Virtual Private Network, or VPN. The VPN will provide strong authentication and encryption for wireless users so that they can access any application without fear of transmitting sensitive information. The VPN will add a degree of complication to using the wireless network, but will provide outstanding security in exchange. Additional information about downloading a VPN client and how to use it will be provided when all the details are finalized.