Appendix D IP Addresses and Subnetting
NWA-3166 User’s Guide
282
As these two IP addresses cannot be used for individual hosts, calculate the
maximum number of possible hosts in a network as follows:
Notation
Since the mask is always a continuous number of ones beginning from the left,
followed by a continuous number of zeros for the remainder of the 32 bit mask,
you can simply specify the number of ones instead of writing the value of each
octet. This is usually specified by writing a “/” followed by the number of bits in
the mask after the address.
For example, 192.1.1.0 /25 is equivalent to saying 192.1.1.0 with subnet mask
255.255.255.128.
The following table shows some possible subnet masks using both notations.
Table 89
Maximum Host Numbers
SUBNET MASK
HOST ID SIZE
MAXIMUM NUMBER OF
HOSTS
8 bits
255.0.0.0
24 bits
2
24
– 2
16777214
16 bits 255.255.0.0
16 bits
2
16
– 2
65534
24 bits 255.255.255.0 8 bits
2
8
– 2
254
29 bits 255.255.255.2
48
3 bits
2
3
– 2
6
Table 90
Alternative Subnet Mask Notation
SUBNET
MASK
ALTERNATIVE
NOTATION
LAST OCTET
(BINARY)
LAST OCTET
(DECIMAL)
255.255.255.0
/24
0000 0000
0
255.255.255.12
8
/25
1000 0000
128
255.255.255.19
2
/26
1100 0000
192
255.255.255.22
4
/27
1110 0000
224
255.255.255.24
0
/28
1111 0000
240
255.255.255.24
8
/29
1111 1000
248
255.255.255.25
2
/30
1111 1100
252
Summary of Contents for NWA-3166
Page 2: ......
Page 15: ...15 PART I Introduction Introduction 17 The Web Configurator 29 Tutorials 33 ...
Page 16: ...16 ...
Page 32: ...Chapter 2 The Web Configurator NWA 3166 User s Guide 32 ...
Page 64: ...Chapter 3 Tutorials NWA 3166 User s Guide 64 ...
Page 66: ...66 ...
Page 70: ...Chapter 4 Status Screen NWA 3166 User s Guide 70 ...
Page 122: ...Chapter 8 Wireless Screen NWA 3166 User s Guide 122 ...
Page 128: ...Chapter 9 SSID Screen NWA 3166 User s Guide 128 ...
Page 158: ...Chapter 14 IP Screen NWA 3166 User s Guide 158 ...
Page 166: ...Chapter 15 Rogue AP Detection NWA 3166 User s Guide 166 ...
Page 186: ...Chapter 17 Internal RADIUS Server NWA 3166 User s Guide 186 ...
Page 213: ...Chapter 19 Log Screens NWA 3166 User s Guide 213 ...
Page 214: ...Chapter 19 Log Screens NWA 3166 User s Guide 214 ...
Page 235: ...Chapter 20 VLAN NWA 3166 User s Guide 235 ...
Page 236: ...Chapter 20 VLAN NWA 3166 User s Guide 236 ...
Page 270: ...Appendix B Wireless LANs NWA 3166 User s Guide 270 ...
Page 300: ...Appendix D IP Addresses and Subnetting NWA 3166 User s Guide 300 ...
Page 308: ...Appendix E Text File Based Auto Configuration NWA 3166 User s Guide 308 ...
Page 314: ...Appendix F How to Access and Use the CLI NWA 3166 User s Guide 314 ...
Page 326: ...Appendix H Customer Support NWA 3166 User s Guide 326 ...
Page 332: ...Index NWA 3166 User s Guide 332 ...