The RoamAbout RBT-8200 has two Gigabit Ethernet ports. The RoamAbout Wireless Switches support indirect connections to the access points via Layer 2 or Layer 3 connections through the wired infrastructure. On the RoamAbout RBT-8200, the RoamAbout Mobility System Software allows the IT manager to configure any port on the wireless switch as either a "network" or "user" port or both. Network ports connect to the network backbone. User ports permit authenticated network access on a per-user basis. Network ports are roughly analogous to the "trusted" ports of a firewall or access server, while the user ports are roughly analogous to a firewall's "untrusted" ports. Network ports determine the subnets or VLANs that are locally available to users connected to a particular wireless switch. User ports are the wired connection for users who connect through an access point attached to a port.