We partner with over 108 affiliated Air Force schools, 82 Education Service Offices located worldwide, and more than 1,500 civilian academic institutions to serve approximately 300,000 active, guard, and reserve enlisted personnel, making CCAF the world's largest community college system.
(April 2010). A virtual IP address (VIP or VIPA) is an IP address that doesn't correspond to an actual physical network interface (port). Uses for VIPs include Network Address Translation (especially, One-to-many NAT), fault-tolerance, and mobility.
A VPN extends a corporate network through encrypted connections made over the Internet. Because the traffic is encrypted between the device and the network, traffic remains private as it travels. An employee can work outside the office and still securely connect to the corporate network.