sonic-buildimage/files/image_config/interfaces/init_interfaces

# Initial /etc/network/interface file for first boot 
# Will be overwritten based on minigraph information by interfaces-config service

# The loopback network interface
auto lo
iface lo inet loopback
#
# The management network interface
auto eth0
iface eth0 inet dhcp
Add get_graph service to fetch minigraph automatically (#288) - Add a functionality to get SNMP community from DHCP (option 224) - Add a functionality to get minigraph from http service instead of using default minigraph - The url for graph service is passed through DHCP option 225 - This feature is by default disabled. Modify rule/config to enable it on build time, or modify /etc/sonic/graph_service_url on run time. - Fix a bug that getting hostname from DHCP is not working correctly 2017-02-17 15:47:01 -06:00			`# Initial /etc/network/interface file for first boot`
			`# Will be overwritten based on minigraph information by interfaces-config service`

			`# The loopback network interface`
			`auto lo`
			`iface lo inet loopback`
			`#`
			`# The management network interface`
			`auto eth0`
			`iface eth0 inet dhcp`