December 2012
Intermediate to advanced
888 pages
48h 24m
English
Content preview from Ubuntu Unleashed 2013 Edition: Covering 12.10 and 13.04, Eighth EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Activating DHCP at Installation and Boot Time
Ubuntu automatically defaults your network interfaces to using DHCP because it is the simplest way of setting up a network interface. With dynamic, or DHCP-assigned IP addressing schemes for your NIC, the broadcast address is set at 255.255.255.255 because dhclient, the DHCP client used for IP configuration, is initially unaware of where the DHCP server is located, so the request must travel every network until a server replies.
You can find the instruction to use DHCP for your NIC /etc/network/interfaces, with a line that says dhcp.
Other settings specific to obtaining DHCP settings are saved in the file named dhclient.conf under the /etc/dhcp3/dhclient.conf directory and are documented in the
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