ZyXEL P-660R Compact Series User Guide - Page 182
Example Eight Subnets
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P-660R-D Series User's Guide Table 74 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 75 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 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 LAST OCTET BIT VALUE 128 10000000 11000000 LAST OCTET BIT VALUE 192 11000000 11000000 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 76 Eight Subnets SUBNET 1 2 3 4 5 6 7 8 SUBNET ADDRESS FIRST ADDRESS 0 1 32 33 64 65 96 97 128 129 160 161 192 193 224 225 LAST ADDRESS BROADCAST ADDRESS 30 31 62 63 94 95 126 127 158 159 190 191 222 223 254 255 6 Appendix E IP Addresses and Subnetting