hardware
dial-up networking 383
DNS servers 142
improving DHCP performance 74
ISA Server 227
remote access servers 383–384
upgrading DHCP servers 72–73
VPN 383–384
WINS 183
hardware routers 11
hierarchical network design See three-tier TCP/IP design model
high availability See availability high-level DNS security policy 159
hosts, classless IP addressing 17–18