Panasonic DX-600, Service Manual

Page: 243 / 358

243
DX-600/800
APR 2002
Edition 1.0
7.3.2. Subnet Mask
A subnet mask defines how sub-segments of a network are treated.
For network management purposes, special IP addresses are assigned.
1. Host address is set to all “0”
2. Host address is set to all “1”
Reserved for IP broadcasting to all subnet stations.
3. All 4 octets are set to all “1”
IP broadcast of 255.255.255.255 can be passed over the router when the network address is specified.
Normally, this is used for DHCP (Dynamic Host Configuration Protocol) network.
4. All 4 octets are set to all “0”
Reserved for default route for non-destination address
5. Most significant bit starting with “127”
Reserved for loop back address
1
IP
192.168.32.1
1 0 0 0 0 0 0 1 0 1 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0
192
255 255
255
1 1 0 0 0 0 0 0 1 0 1 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0
Subnet Mask
255.255.255.0
Network
Address
192.168.32.0
IP
Subnet Mask
Network Address Configuration
168 32 1
0
190.0.3.1
255.255.255.0
190.0.3.2
255.255.255.0
190.0.3.3
255.255.255.0
190.0.2.1
255.255.255.0
190.0.2.2
255.255.255.0
190.0.2.3
255.255.255.0
190.0.1.1
255.255.255.0
190.0.1.2
255.255.255.0
190.0.1.3
255.255.255.0
Ground
Floor
Second
Floor
Third
Floor
Router
Global IP
Address
190.0.0.0
255.255.0.0
Note
Upper: IP address
Lower: Subnet mask
Class B Subnet Outline