Linux 增加/删除虚拟IP地址 - 《Linux》

# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether fa:16:3e:28:8a:4b brd ff:ff:ff:ff:ff:ff
    inet 10.0.60.111/24 brd 10.0.60.255 scope global noprefixroute dynamic eth0
       valid_lft 56873sec preferred_lft 56873sec
    inet6 fe80::6cd6:56ff:e1e7:229c/64 scope link noprefixroute
       valid_lft forever preferred_lft forever

增加一个IP

ifconfig eth0:1 192.168.0.1 netmask 255.255.255.0

# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether fa:16:3e:28:8a:4b brd ff:ff:ff:ff:ff:ff
    inet 10.0.60.111/24 brd 10.0.60.255 scope global noprefixroute dynamic eth0
       valid_lft 86326sec preferred_lft 86326sec
    inet 192.168.0.1/24 brd 192.168.0.255 scope global eth0:1
       valid_lft forever preferred_lft forever
    inet6 fe80::6cd6:56ff:e1e7:229c/64 scope link noprefixroute
       valid_lft forever preferred_lft forever

删除网卡的第二个IP地址

ip addr del 192.168.0.1 dev eth0