DHCP relay

sudo apt-get install dhcp3-relay

之後照著指示安裝

輸入主要DHCP server的ip

輸入對內及對網的網卡(依照順序,內>外,中間要空格)

額外選項(預設空白即可)

以上設定會存在/etc/default/dhcp3-relay

編輯這個檔案就可以在做修改 

$sudo nano /etc/default/dhcp3-relay

# Defaults for dhcp3-relay initscript
# sourced by /etc/init.d/dhcp3-relay
# installed at /etc/default/dhcp3-relay by the maintainer scripts

#
# This is a POSIX shell fragment
#

# What servers should the DHCP relay forward requests to?
SERVERS="172.30.100.2"

# On what interfaces should the DHCP relay (dhrelay) serve DHCP requests?
INTERFACES="eth0 eth1"

# Additional options that are passed to the DHCP relay daemon?
OPTIONS=""