/etc/network/interfaces 文件

编辑 /etc/network/interfaces 文件：

# /etc/network/interfaces -- configuration file for ifup(8), ifdown(8)

#lo
auto lo
iface lo inet loopback

#eth0
auto eth0
iface eth0 inet dhcp

#eth1
auto eth1
iface eth1 inet static
    address 192.168.2.233
    gateway 192.168.2.1
    netmask 255.255.255.0
    hwaddress ether AA:BB:CC:DD:EE:00

#eth2:98
auto eth2:98
iface eth2:98 inet static
    address 192.168.98.233
    gateway 192.168.98.1
    netmask 255.255.255.0

#eth2:0
auto eth2:0
iface eth2:0 inet static
    address 192.168.0.233
    gateway 192.168.0.1
    netmask 255.255.255.0

#can
source /etc/network/can.cfg

这里 lo 为回环接口；eth0、eth1 和 eth2 为三个以太网接口：
 1、将 eth0 配置成动态 IP；
 2、将 eth1 配置成静态 IP，ip 地址为 192.168.2.233，mac 地址为 AA:BB:CC:DD:EE:00；
 3、将 eth2 配置成双静态 IP，ip 地址为 192.168.98.233、192.168.0.233；
 4、运行 /etc/network/can.cfg 文件配置 can 接口。

编辑 /etc/network/can.cfg 文件：

auto can0 can1 can2

#can0
iface can0 inet manual
    pre-up /sbin/ip link set $IFACE type can bitrate 500000 sample-point 0.75 dbitrate 2000000 dsample-point 0.75 restart-ms 200 fd on
    up /sbin/ifconfig $IFACE up
    down /sbin/ifconfig $IFACE down

#can1
iface can1 inet manual
    pre-up /bin/echo 4096 > /sys/class/net/$IFACE/tx_queue_len
    pre-up /sbin/ip link set $IFACE type can bitrate 500000 restart-ms 200
    up /sbin/ifconfig $IFACE up
    down /sbin/ifconfig $IFACE down

#can2
iface can2 inet manual
    pre-up /bin/echo 4096 > /sys/class/net/$IFACE/tx_queue_len
    pre-up /sbin/ip link set $IFACE type can bitrate 500000 sample-point 0.75 dbitrate 2000000 dsample-point 0.75 restart-ms 200 fd on fd-non-iso on
    up /sbin/ifconfig $IFACE up
    down /sbin/ifconfig $IFACE down

重启网卡：

/etc/init.d/networking restart

参考：

man 5 interfaces