Operation Manual

NT/MPRI – Glossary 124
Class A Address
Example: 88.120.5.120 (88 defines the network address;
120.5.120 the host address).
l Class B addresses consist of a two-byte network address and a
two-byte host address:
Class B address
Example: 130.6.2.130 (130.6 is the network address; 2.130 is the
host address).
l Class C addresses consist of a three-byte network address and a
one-byte host address:
Class C address
Example: 195.15.15.1 (195.15.15 is the network address; 1 is the
host address).
RFC 1918 (Address Allocation for Private Internets) designates the fol-
lowing blocks of the IP address range as suitable for private LANs:
10.0.0.0 - 10.255.255.255 (10/8 prefix)
172.16.0.0 - 172.31.255.255 (172.16/12 prefix)
192.168.0.0 - 192.168.255.255 (192.168/16 prefix)
X._._._
Network address
Host address
X.X._._
Network address
Host address
X.X.X._
Network address
Host address
ntmpri-e.book Seite 124 Donnerstag, 28. Februar 2002 11:26 11