11.7
11.7.1
11.7.2
12
Subnets ..................................................83
12.1
IP Addresses.......................................................................................................83
12.1.1
12.2
Network classes..................................................................................................84
12.3
Subnet masks .....................................................................................................85
13
13.1
13.1.1
13.1.2
14
Index ......................................................91
vi
ping ...........................................................................................................88
nslookup ...................................................................................................89