AddressFamily
AppleTalk = 16
Atm = 22
Banyan = 21
Ccitt = 10
Chaos = 5
Cluster = 24
DataKit = 9
DataLink = 13
DecNet = 12
Ecma = 8
FireFox = 19
HyperChannel = 15
Ieee12844 = 25
ImpLink = 3
InterNetwork = 2
InterNetworkV6 = 23
Ipx = 6
Irda = 26
Iso = 7
Lat = 14
NetBios = 17
NetworkDesigners = 28
NS = 6
Osi = 7
Pup = 4
Sna = 11
Unix = 1
Unknown = -1
Unspecified = 0
VoiceView = 18