使用Ubuntu時
網路的設定檔在  /etc/network/interfaces
依您的例子設定參考如下:
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet static
        address 163.23.XX.XX
        netmask 255.255.255.192
        network 163.23.XX.YY
        broadcast 163.23.XX.ZZ
        gateway 163.23.XX.XX
        dns-nameservers 163.23.XX.XX
auto eth1
iface eth1 inet static
        address 192.168.1.254
        netmask 255.255.255.0
        network 192.168.1.255
        broadcast 192.168.1.255
auto eth2
iface eth2 inet static
        address 192.168.2.254
        netmask 255.255.255.0
        network 192.168.2.255
        broadcast 192.168.2.255