NETGEAR WGR614 v6 Reference Manual page 88

Reference Manual for the 54 Mbps Wireless Router WGR614 v6
The following table lists the additional subnet mask bits in dotted-decimal notation. To use the
table, write down the original class netmask and replace the 0 value octets with the dotted-decimal
value of the additional subnet bits. For example, to partition your Class C network with subnet
mask 255.255.255.0 into 16 subnets (4 bits), the new subnet mask becomes 255.255.255.240.
Table 7-1. Netmask Notation Translation Table for One Octet
Number of Bits Dotted-Decimal Value
1 1 2 8
2 1 9 2
3 2 2 4
4 2 4 0
5 2 4 8
6 2 5 2
7 2 5 4
8 2 5 5
The following table displays several common netmask values in both the dotted-decimal and the
masklength formats.
Table 7-2. Netmask Formats
Dotted-Decimal
2 5 5 . 0. 0. 0
2 5 5 . 2 5 5 . 0. 0
2 5 5 . 2 5 5 . 2 5 5 . 0
2 5 5 . 2 5 5 . 2 5 5 . 1 2 8
2 5 5 . 2 5 5 . 2 5 5 . 1 9 2
2 5 5 . 2 5 5 . 2 5 5 . 2 2 4
2 5 5 . 2 5 5 . 2 5 5 . 2 4 0
2 5 5 . 2 5 5 . 2 5 5 . 2 4 8
2 5 5 . 2 5 5 . 2 5 5 . 2 5 2
2 5 5 . 2 5 5 . 2 5 5 . 2 5 4
2 5 5 . 2 5 5 . 2 5 5 . 2 5 5
Configure all hosts on a LAN segment to use the same netmask for the following reasons:
B -6
Masklength
/8
/1 6
/2 4
/2 5
/2 6
/2 7
/2 8
/2 9
/3 0
/3 1
/3 2
202-10099-01, April 2005
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