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Ubuntu Unleashed 2014 Edition: Covering 13.10 and 14.04,Ninth Edition by Paul Hudson, Andrew Hudson, Matthew Helmke

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Network Management

Network management is done by nova-network, which interacts directly with nova-compute to make sure that running instances are properly configured to communicate, both within the local network and with the wider Internet. Each instance can have two associated IP addresses: one for public communication outside of the local cloud network, and one for private communication within the trusted local network.

Three network management options exist: a flat network, a flat Dynamic Host Control Protocol (DHCP) network, and a virtual local area network (VLAN). VLAN is the default. You may choose others by modifying the option in nova.conf:

--network_manager = nova.network.manager.FlatManager--network_manager ...

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