Ubuntu 雙網卡與 Internet 連線

# The loopback network interface

auto lo

iface lo inet loopback

# The primary network interface

auto eth0

#iface eth0 inet dhcp

iface eth0 inet static

     address 192.168.1.11

     netmask 255.255.255.0

     gateway 192.168.1.1

# The 2nd network interface

auto eth1

iface eth1 inet static

     address 192.168.0.11

     netmask 255.255.255.0

     gateway 192.168.0.1

# 第二張網卡設了 gateway，需另外增加 route 規則才能讓  LAN 網路暢通。

# Add static route for eth1

up route add -net 192.168.0.0/24 gw 192.168.0.1 dev eth1

# 若要能連上 internet，需再加設 route 規則才能連。

# Add static route for internet connection via eth0

up route add -net 0.0.0.0/0 gw 192.168.1.1 dev eth0