I have a cisco network that has a number of different Vlans. Once of those vlans is for my guest wireless network. It is a simple setup where if someone connects to the guest ssid, they are put on a different vlan that just goes out to a Linksys router connected to it's own dedicated
internet connection with full access.
Problem is, my employees are now connecting to guest with the business machines and using it to gain access to sites that are restricted on the business vlan.
so, I want to do something like they do at hotels where if you connect to the guest ssid, a website splash screen will come up prompting you for a code. The code would be issued by IT with an expiration date. They enter in the code, agree to terms and conditions and then have access as long as the code is valid.
Can anyone suggest such a hardware based device that can handle this? Nothing too expensive or complicated. My budget is no more than $1000 if possible.