이부분의 동작방식은 다시 boot script 부분을 보면 동작하는 방식을 이해가능
- /etc/network/interfaces 설정의 예제
http://dis.um.es/~lopezquesada/documentos/IES_1213/SAD/curso/UT8/interfaces.pdf
http://www.cyberciti.biz/faq/setting-up-an-network-interfaces-file/
- 나의 Network 설정 (/etc/network/interfaces)
# Wired or wireless interfaces
auto eth0
iface eth0 inet dhcp
pre-up /bin/grep -v -e "ip=[0-9]\+\.[0-9]\+\.[0-9]\+\.[0-9]\+" /proc/cmdline > /dev/null
$ cat /etc/network/interfaces
# /etc/network/interfaces -- configuration file for ifup(8), ifdown(8)
# The loopback interface
auto lo
iface lo inet loopback
# Wireless interfaces
#
# Example of an unencrypted (no WEP or WPA) wireless connection
# that connects to any available access point:
#
iface wlan0 inet dhcp
wireless_mode managed
wireless_essid any
#
#
# Same as above but locked to a specific access point:
#
#iface wlan0 inet dhcp
# wireless_mode managed
# wireless-essid some-essid
#
# A WEP encrypted connection locked to a specific access point:
#
#iface wlan0 inet dhcp
# wireless-essid some-essid
# wireless-key s:My-PlainText-Password
# wireless-mode managed
#
# A WPA1 or WPA2 encrypted connection locked to a specific access point.
# This is the best option for non-roaming, single-network usage.
# Note that your card may require a firmware update to use WPA.
# Some distributions install a temporary volatile firmware update on ifup.
#
#iface wlan0 inet dhcp
# wpa-essid some-essid
# wpa-psk My-PlainText-Password
#
# A WPA1 or WPA2 encrypted connection using an external configuration file
# for wpa-supplicant. This is the way to go if you need to configure multiple
# networks with different keys and / or WPA settings and roaming support.
#
# iface wlan0 inet dhcp
# wpa-conf /etc/wpa_supplicant.conf
# wpa-driver hostap
iface atml0 inet dhcp
# Wired or wireless interfaces
auto eth0
iface eth0 inet static
pre-up /bin/grep -v -e "ip=[0-9]\+\.[0-9]\+\.[0-9]\+\.[0-9]\+" /proc/cmdline > /dev/null
iface eth1 inet dhcp
# Ethernet/RNDIS gadget (g_ether)
# ... or on host side, usbnet and random hwaddr
iface usb0 inet static
address 192.168.0.202
netmask 255.255.255.0
network 192.168.0.0
gateway 192.168.0.200
# Zaurus 2.4 Lineo net_fd; obsolete
iface usbd0 inet static
address 192.168.129.201
netmask 255.255.255.0
network 192.168.129.0
gateway 192.168.129.200
# iPAQ 2.4 mach-sa1100/usb-eth
# (192.168.0.202 is the iPAQ's IP, 192.168.0.200 is the host's IP)
iface usbf inet static
address 192.168.0.202
netmask 255.255.255.0
network 192.168.0.0
gateway 192.168.0.200
# Bluetooth networking
iface bnep0 inet dhcp