RMS Compact II
Version 1.0.7 September 2016
Page 58
Network Mask
Routing and Filtering
255.0.0.0
Class A network. First octet defines
network number. Final three octets
define host address. Valid Class A
network numbers are in the range 1
to 126.
255.255.0.0
Class B network. First 2 octets
define network number. Final two
octets define host address. Valid
class B network numbers are in the
range
128.0.x.x to 191.255.x.x
255.255.255.0
Class C network. First 3 octects
define network number. Final octet
defines host address Valid class C
network numbers are in the range.
192.0.0.x 223.255.255.x
Gateways
Gateway, also sometimes referred to as a router, is any device with two or more
network adapters connecting to different physical networks.
Gateways allow for transmission of IP packets between different networks on an
internetwork.
