Arthur C Clarke December 16 1917 March

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Arthur C. Clarke December 16, 1917 – March 19, 2008

● Came up with the concept of the communications satellite in 1942 ● Never took out a patent Well know Science Fiction writer of the “Golden Age” 2001 a Space Odyssey Rendezvous with Rama

Personal Wireless Routers ● Probably your most cost effective security measure Hides your computer completely from the outside world Protects you from most worms, and intrusions ● ● Protects you from port scans Does not expose vulnerable services to the internet

Personal Routers ● With some broadband providers, you must buy the modem. Verizon DSL is an example ● In this case, it makes good sense to buy a modem that is a router/AP Some providers give you a modem which can connect to your computer The router you buy should connect between the modem and the computer Typically this means a router that takes ethernet as input.

Personal Routers ● Even the cheapest routers provide; Network Address Translation NAT DHCP Port forwarding Wireless security ● ● ● MAC address restriction WEP and WPA More money buys more feature Better integration with Windows

Personal Routers ● Most vendors use local addresses for the internal network ● Almost universally, the addresses are in the pool 192. 168. 1. * To communicate with the router, your IP address needs to be in this range DHCP, or the setup software should handle this Most router/APs can only be programmed via one of the ethernet ports.

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