[Ubuntu] 單網卡多個IP

1. 臨時性

sudo ip address add <ip-address>/<netmask> dev <interface>

例：

sudo ip address add 10.231.141.231/24 dev eth0

2. 永久性 /etc/network/interfaces

iface eth0 dhcp
iface eth0 inet static
    address 10.231.141.231/24
iface eth0 inet static
    address 10.241.141.231/24

重新啟動

sudo ifdown eth0 && sudo ifup eth0

補充：The iproute2 suite:

The iproute2 suite is the communication suite for interprocess communication beween the kernel and the user space via the netlink protocol. It should replace the whole standard network tools. Here is what they replace:

• ifconfig --> ip addr and ip link
• route --> ip route
• arp --> ip neigh
• iptunnel --> ip tunnel
• ipmaddr --> ip maddr
• netstat --> ss