First octet value range from X to X. Example for class B: Public IP Range: 128.0.0.0 - 191.255.0.0. 

  • A 1-126
  • B 128 - 191
  • C 192 - 223
  • D 224 - 239
  • E 240 - 254

802.11b
  • 11 MB/sec
  • 2.4 GHz
  • 11 overlapping channels which caused problems

802.11a
  • 54 MB/sec
  • 50 GHz

802.11g
  • 54 MB/sec 
  • 2.4 GHz

802.11n
  • 108-300 MB/sec - up to 600
  • 2.4/5 GHz 
  • MIMO

802.11ac
  • 1 GB/sec
  • 2.4/5 GHz 
  • more channels, more speed
  • MU-MIMO
  1. Identify Problem
  2. Establish Theory
  3. Test Theory
  4. Establish Plan
  5. Implement Solution
  6. Verify Functionality