... solutions
Denial of service attack sources are more easy to find as the
average public access zone may be only one cell, network
management also helps
Public Access Controller (PAC) and related vendor solutions
use WWW (https) secured authentication and MAC address
based access filtering
the usage of VPN client for corporate access after the PAC has
opened the hole to Internet
limit the access to Internet only to few ports (WWW, IMAP,
etc.) => attacking hosts in Internet does not seem to be feasible
use real IP addresses if possible