"CoovaAP is based on the open source OpenWRT firmware
replacement and designed specifically for hotspots. In addition to
being a normal access point, it supports WDS (wireless distribution
system). Thus if your location requires multiple APs, some can be
set in repeater mode instead of having to run Ethernet cables to
them. The wireless router and hotspot settings are easily
configurable with a web browser, like regular routers.
"The CoovaAP firmware features an customizable internal captive
portal, where you can either require user accounts (self
registering or defined by you) or require users just to just agree
to the terms of service (ToS). Figure 1 shows the portal page shown
in users when using the self registering method. Figure 2 shows the
ToS page users would see when not requiring users to have accounts.
Plus it even has a Facebook portal feature. Traffic shaping or
bandwidth control is also included, so you can limit how much
Internet power guests use."