D-Link DES-3250TG User Manual page 54

DES-3250TG Layer 2 Fast Ethernet Switch User's Guide
24
20 255.255.255.2
40
21 255.255.255.2
48
22 255.255.255.2
52
Table 5- 3. Class A Subnet Masks
# of Subnet Mask
Bits
2 255.255.192
3 255.255.224.0
4 255.255.240.0
5 255.255.248.0
6 255.255.252.0
7 255.255.254.0
8 255.255.255.0
9 255.255.255.128
10 255.255.255.192
11 255.255.255.224
12 255.255.255.240
13 255.255.255.248
14 255.255.255.252
Table 5- 4. Class B Subnet Masks
# of Subnet Mask
Bits
/28 104857 14
4
/29 209715 6
0
/30 419430 2
2
CIDR # of # of
Notation Subnets Hosts
/18 2 16382
/19 6 8190
/20 14 4094
/21 30 2046
/22 62 1022
/23 126 510
/24 254 254
/25 510 126
/26 1022 62
/27 2046 30
/28 4094 14
/29 8190 6
/30 16382 2
CIDR # of # of
Notation Subnets Hosts
46
14680036
12582900
8388604
Total
Hosts
32764
49140
57316
61380
63364
64260
64516
64260
63364
61380
57316
49140
32764
Total
Hosts