Example Eight Subnets; Table 139 Subnet 3; Table 140 Subnet 4; Table 141 Eight Subnets - ZyXEL Communications P-660HW-T - V2 User Manual

P-660HW-T v2 User's Guide
Table 138 Subnet 2 (continued)
IP/SUBNET MASK
Subnet Address: 192.168.1.64
Broadcast Address: 192.168.1.127

Table 139 Subnet 3

IP/SUBNET MASK
IP Address
IP Address (Binary)
Subnet Mask (Binary)
Subnet Address:
192.168.1.128
Broadcast Address:
192.168.1.191

Table 140 Subnet 4

IP/SUBNET MASK
IP Address
IP Address (Binary)
Subnet Mask (Binary)
Subnet Address:
192.168.1.192
Broadcast Address:
192.168.1.255

Example Eight Subnets

Similarly use a 27-bit mask to create eight subnets (000, 001, 010, 011, 100, 101, 110 and
111).
The following table shows class C IP address last octet values for each subnet.

Table 141 Eight Subnets

SUBNET
1
2
3
4
302
NETWORK NUMBER
Lowest Host ID: 192.168.1.65
Highest Host ID: 192.168.1.126
NETWORK NUMBER
192.168.1.
11000000.10101000.00000001.
11111111.11111111.11111111.
Lowest Host ID: 192.168.1.129
Highest Host ID: 192.168.1.190
NETWORK NUMBER
192.168.1.
11000000.10101000.00000001.
11111111.11111111.11111111.
Lowest Host ID: 192.168.1.193
Highest Host ID: 192.168.1.254
SUBNET ADDRESS FIRST ADDRESS
0 1
32 33
64 65
96 97
LAST OCTET BIT
VALUE
LAST OCTET BIT
VALUE
128
10000000
11000000
LAST OCTET BIT VALUE
192
11000000
11000000
BROADCAST
LAST ADDRESS
ADDRESS
30 31
62 63
94 95
126 127
Appendix F IP Subnetting