DHCP (The Definition)
The Dynamic Host Configuration Protocol is a standardized networking protocol used on Internet Protocol networks for dynamically distributing network configuration parameters, such as IP addresses for interfaces and services
What does that have to do with my Yamaha network product?
DHCP allows for your Yamaha network product when connected, to automatically become a member of your home network. It is enabled on Yamaha products by default. Most consumer networks use DHCP on all devices. If you turn off DHCP on the Yamaha receiver, it will not automatically become a member of your home network and you will not have network connectivity.
Note: This setting is found in the receiver’s Setup Menu\Network\IP Address\DHCP If you need further assitance with this setting, please consult your owner's manual or contact Yamaha support: http://usa.yamaha.com/support/contact/audio_visual/
Why would I turn DHCP off?
This would be done on setups that have special `Control` systems or more complex home networks that integrate in various custom applications. It’s normally done by custom installers/dealers or programmers.