Configuring Ip Addresses - ZyXEL Communications P-660HN-T1H User Manual

Appendix B IP Addresses and Subnetting
Subnet Planning
The following table is a summary for subnet planning on a network with a 24-bit
network number.
Table 108 24-bit Network Number Subnet Planning
NO. "BORROWED"
HOST BITS
1
2
3
4
5
6
7
The following table is a summary for subnet planning on a network with a 16-bit
network number.
Table 109 16-bit Network Number Subnet Planning
NO. "BORROWED"
HOST BITS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15

Configuring IP Addresses

Where you obtain your network number depends on your particular situation. If
the ISP or your network administrator assigns you a block of registered IP
276
SUBNET MASK
255.255.255.128 (/25)
255.255.255.192 (/26)
255.255.255.224 (/27)
255.255.255.240 (/28)
255.255.255.248 (/29)
255.255.255.252 (/30)
255.255.255.254 (/31)
SUBNET MASK
255.255.128.0 (/17)
255.255.192.0 (/18)
255.255.224.0 (/19)
255.255.240.0 (/20)
255.255.248.0 (/21)
255.255.252.0 (/22)
255.255.254.0 (/23)
255.255.255.0 (/24)
255.255.255.128 (/25)
255.255.255.192 (/26)
255.255.255.224 (/27)
255.255.255.240 (/28)
255.255.255.248 (/29)
255.255.255.252 (/30)
255.255.255.254 (/31)
NO. HOSTS PER
NO. SUBNETS
SUBNET
2 126
4 62
8 30
16 14
32 6
64 2
128 1
NO. HOSTS PER
NO. SUBNETS
SUBNET
2 32766
4 16382
8 8190
16 4094
32 2046
64 1022
128 510
256 254
512 126
1024 62
2048 30
4096 14
8192 6
16384 2
32768 1
P-660HN-T1H User's Guide