We use a variety of Linksys WAP54 in combination with a WRT54. This network runs outside the corporate network and is used only for guests. Many colleagues use this network to bypass the proxy server and then connect through a VPN connection to the corporate network. This way being able to access everything ICT is blocking. We want to try to avoid this because it is not the intention, of course. Within the WRT it is possible to prohibit access to some mac addresses, but only up to 40.
Is there known software the WRT can be replaced by we can block multiple systems connecting and where any other brands of access points can connect to? Our preference is obviously open source software.
Thank in advance.