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Diffstat (limited to 'chapter07/network.xml')
| -rw-r--r-- | chapter07/network.xml | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/chapter07/network.xml b/chapter07/network.xml index 6946e693d..e8ee50248 100644 --- a/chapter07/network.xml +++ b/chapter07/network.xml @@ -165,14 +165,17 @@ EOF</userinput></screen> gateway IP address, if one is present. If not, then comment out the variable entirely.</para> - <para>The <envar>PREFIX</envar> variable needs to contain the number of + <para>The <envar>PREFIX</envar> variable containis the number of bits used in the subnet. Each octet in an IP address is 8 bits. If the subnet's netmask is 255.255.255.0, then it is using the first three octets (24 bits) to specify the network number. If the netmask is 255.255.255.240, it would be using the first 28 bits. Prefixes longer than 24 bits are commonly used by DSL and cable-based Internet Service Providers (ISPs). In this example (PREFIX=24), the netmask is 255.255.255.0. Adjust the - <envar>PREFIX</envar> variable according to your specific subnet.</para> + <envar>PREFIX</envar> variable according to your specific subnet.i + If omitted, the PREFIX defaults to 24.</para> + + <para>For more information see the <command>ifup</command> man page.</para> </sect2> |