
Vantage CNM 2.0 User’s Guide
276
Subnetting With Class A and Class B Networks.
For class “A” and class “B” addresses the subnet mask also determines which bits are part of
the network number and which are part of the host ID.
A class “B” address has two host ID octets available for subnetting and a class “A” address has
three host ID octets (
see Table 117
) available for subnetting.
The following table is a summary for class “B” subnet planning.
Table 130 Class B Subnet Planning
NO. “BORROWED” HOST
BITS
SUBNET MASK
NO. SUBNETS
NO. HOSTS PER
SUBNET
1
255.255.128.0 (/17)
2
32766
2
255.255.192.0 (/18)
4
16382
3
255.255.224.0 (/19)
8
8190
4
255.255.240.0 (/20)
16
4094
5
255.255.248.0 (/21)
32
2046
6
255.255.252.0 (/22)
64
1022
7
255.255.254.0 (/23)
128
510
8
255.255.255.0 (/24)
256
254
9
255.255.255.128 (/25)
512
126
10
255.255.255.192 (/26)
1024
62
11
255.255.255.224 (/27)
2048
30
12
255.255.255.240 (/28)
4096
14
13
255.255.255.248 (/29)
8192
6
14
255.255.255.252 (/30)
16384
2
15
255.255.255.254 (/31)
32768
1
Summary of Contents for VANTAGE CNM 2.0 -
Page 30: ...Vantage CNM 2 0 User s Guide 33 Chapter 1 Introducing Vantage ...
Page 40: ...Vantage CNM 2 0 User s Guide 43 Chapter 2 GUI Introduction ...
Page 66: ...Vantage CNM 2 0 User s Guide 69 Chapter 4 Configuration Select Device BB General ...
Page 78: ...Vantage CNM 2 0 User s Guide 81 Chapter 5 Configuration LAN ...
Page 96: ...Vantage CNM 2 0 User s Guide 99 Chapter 7 Configuration DMZ ...
Page 126: ...Vantage CNM 2 0 User s Guide 129 Chapter 8 Configuration WAN ...
Page 140: ...Vantage CNM 2 0 User s Guide 143 Chapter 9 Configuration NAT ...
Page 144: ...Vantage CNM 2 0 User s Guide 147 Chapter 10 Configuration Static Route ...
Page 162: ...Vantage CNM 2 0 User s Guide 165 Chapter 11 Configuration VPN ...
Page 182: ...Vantage CNM 2 0 User s Guide 185 Chapter 12 Configuration Firewall ...
Page 188: ...Vantage CNM 2 0 User s Guide 191 Chapter 13 Configuration Device Log ...
Page 236: ...Vantage CNM 2 0 User s Guide 239 Chapter 18 Other System Screens ...
Page 239: ...Vantage CNM 2 0 User s Guide Chapter 19 Monitor Alarms 242 Figure 132 Monitor Current Alarms ...
Page 242: ...Vantage CNM 2 0 User s Guide 245 Chapter 19 Monitor Alarms ...
Page 248: ...Vantage CNM 2 0 User s Guide 251 Chapter 20 Other Monitor Screens ...
Page 254: ...Vantage CNM 2 0 User s Guide 257 Figure 151 WFTPD Pro Log On ...
Page 266: ...Vantage CNM 2 0 User s Guide 269 ...
Page 274: ...Vantage CNM 2 0 User s Guide 277 ...
Page 286: ...Vantage CNM 2 0 User s Guide 289 ...
Page 288: ...Vantage CNM 2 0 User s Guide 291 ...
Page 291: ...Vantage CNM 2 0 User s Guide 294 Figure 181 ESS Provides Campus Wide Coverage ...
Page 292: ...Vantage CNM 2 0 User s Guide 295 ...
Page 312: ...Vantage CNM 2 0 User s Guide 315 ...