A Cautionary Note

• Yes, a non-surprising result that NAPT pervades the QuakeIII community, albeit less than 30%

  • IP QoS schemes (and any related signaling architectures) for gaming will need to accommodate NAPT

• However, definition of (home) client isn't foolproof

  • Approximately 15% of IP addresses couldn't be resolved to a domain name
  • List of probable consumer ISPs used to define 'home' client/user is rough – could be off in either direction
  • "Non-regional" domains such as ".com", ".net", and ".org" still largely reflect North American users – patterns may differ in Europe or AsiaPac