Free internet for thee

If you ever find yourself at Sydney airport with a laptop that has a wireless network card, connect to the "Cisco" network. It gives you access to the internet for free for some reason. In fact I am making this post from the airport right now. I wonder if this is a permanent service or whether Cisco have made a security blunder here. It doesn't seem right because there is a 'sydneyairport.com' wireless network floating around here, and when connecting to it, you are asked to pay money to connect to the web at ridiculous rates. Well, well, surf's up!