ZyXEL Communications 2WE Example Eight Subnets, Chart K-9Subnet, Chart K-10Subnet, Chart K-11Eight Subnets

ZyWALL 2 and ZyWALL 2WE

Chart K-9 Subnet 3

	NETWORK NUMBER			LAST OCTET BIT VALUE
IP Address	192.168.1.		128
IP Address (Binary)	11000000.10101000.00000001.				000000
				10
Subnet Mask (Binary)	11111111.11111111.11111111.				000000
				11
Subnet Address: 192.168.1.128		Lowest Host ID: 192.168.1.129
Broadcast Address: 192.168.1.191		Highest Host ID: 192.168.1.190
	Chart K-10 Subnet 4
	NETWORK NUMBER			LAST OCTET BIT VALUE
IP Address	192.168.1.		192
IP Address (Binary)	11000000.10101000.00000001.				000000
				11
Subnet Mask (Binary)	11111111.11111111.11111111.				000000
				11
Subnet Address: 192.168.1.192		Lowest Host ID: 192.168.1.193
Broadcast Address: 192.168.1.255		Highest Host ID: 192.168.1.254

Example Eight Subnets

Similarly use a 27-bit mask to create 8 subnets (001, 010, 011, 100, 101, 110).

The following table shows class C IP address last octet values for each subnet.

Chart K-11 Eight Subnets

SUBNET	SUBNET ADDRESS	FIRST ADDRESS	LAST ADDRESS	BROADCAST ADDRESS
1	0	1	30	31
2	32	33	62	63
3	64	65	94	95
4	96	97	126	127
5	128	129	158	159
6	160	161	190	191
7	192	193	222	223

50 IP Subnetting