iface eth0 inet static: eth0에 대한 고정 IP 주소를 정의합니다

iface eth0 inet manual: IP 주소없이 네트워크 인터페이스를 생성합니다. 일반적으로 브리지 또는 집계 멤버이거나 VLAN 장치가 구성된 인터페이스에서 사용됩니다.

자세한 내용은 다음을 참조하십시오.

• https://wiki.debian.org/NetworkConfiguration

파일을 살펴보면 /usr/share/doc/ifupdown/examples/network-interfaces.gz수동 및 일부 사용 사례에 대해 자세히 알 수 있습니다.

# Set up an interface to read all the traffic on the network. This
# configuration can be useful to setup Network Intrusion Detection
# sensors in 'stealth'-type configuration. This prevents the NIDS
# system to be a direct target in a hostile network since they have
# no IP address on the network. Notice, however, that there have been
# known bugs over time in sensors part of NIDS (for example see
# DSA-297 related to Snort) and remote buffer overflows might even be
# triggered by network packet processing.
#
# auto eth0
# iface eth0 inet manual
#   up ifconfig $IFACE 0.0.0.0 up
#       up ip link set $IFACE promisc on
#       down ip link set $IFACE promisc off
#       down ifconfig $IFACE down

# Set up an interface which will not be allocated an IP address by
# ifupdown but will be configured through external programs. This
# can be useful to setup interfaces configured through other programs,
# like, for example, PPPOE scripts.
#
# auto eth0
# iface eth0 inet manual
#       up ifconfig $IFACE 0.0.0.0 up
#       up /usr/local/bin/myconfigscript
#       down ifconfig $IFACE down

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