Freelan is an application to create secure ethernet tunnels over a
 single UDP port. It can be used to create virtual LANs ("Local
 Area Network"), hence the name: "freelan".
 .
 Freelan may create peer-to-peer tunnel connections or rely on a
 more classic client/server layout. The virtual network can be
 shaped to fit exactly the bandwidth or topology constraints,
 providing an optimal virtual private network.
 .
 Freelan is particularly useful for remote sites interconnection and
 gaming.