I would like to know the best way to handle a change on an office network for a school. Currently there are a number of wireless clients (approx 30 laptops) throught the school buildings. There are a total of 4 wi-fi access points to provide complete coverage. The same non-broadcast SSID is used everywhere along with the same WEP key.
I would like to open up access occasionally for visitors/guests to access the internet (no need for domain access). What is the best way to do this with no interruption of the existing connections but without giving out the permanent WEP key. Also, for ease of use I thought about temporarily broadcasting the SSID when the need arises.
The other though I had was to purchase an additional AP just to use for this purpose, but if there is a good way to do it using our existing hardware that would be preferred.