Netgear DG834GT User Manual Page 122

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Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router
B-6 Network and Routing Basics
August 2004
The following table displays several common netmask values in both the dotted-decimal and the
masklength formats.
NETGEAR strongly recommends that you configure all hosts on a LAN segment to use the same
netmask for the following reasons:
So that hosts recognize local IP broadcast packets
Table 8-1. Netmask Notation Translation Table for One Octet
Number of Bits Dotted-Decimal Value
1 128
2 192
3 224
4 240
5 248
6 252
7 254
8 255
Table 8-2. Netmask Formats
Dotted-Decimal Masklength
255.0.0.0 /8
255.255.0.0 /16
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
255.255.255.255 /32
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