Wireless Networking

I have more questions than answers. What are the distances of the park (how many campers) and the existing wireless link you setup? How is the connection rate doing with the metal siding on the campers? There are several ways to set up a "pay as you use" system, but it could get expensive.

In my opinion, getting all the rf stuff right is a whole different matter. To do the pay as you go stuff you pretty much do it just like most of the hot spots does it. You control access through some sort of a gateway. One example would be setup and the access point place a BSD or a Linux box in between that and the Starband. All traffic coming in are routed to an authorization webpage where they key in their credit card or generated pin. Once authorized you unblock their mac or ip (assuming you dish out ip via dhcp) at the gateway to allow them out. In BSD there are 3 packet filters you can choose from pf, ipf or ipfw
in Linux the current default is IP Tables.

if you had a better access point you could do an snmp set to allow or deny mac addresses but that's a whole another topic.

I have found that D-Link has a very nice Hot Spot private/public gateway (DSA-3200) is one of them. They also have access points that are POE that is to say they are powered over ethernet cables. that will make installation a lot simpler. Check with a D-link rep for some help... if you read thier case studies it reassures you to know that some large hotels are using thier equipment for high speed internet access.
As for the pay as you go software I did not find information on that but perhaps if you visited a couple of "pay as you go" hotspots you can find the software that would work well for you and your consumers.

Good Luck

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