Centos Linux为一个物理网卡绑定设置多个IP地址

通过ip命令

[root@sre01 network-scripts]# ip addr show ens36
3: ens36: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 00:0c:29:c0:78:db brd ff:ff:ff:ff:ff:ff
    inet 11.11.11.11/24 brd 11.11.11.255 scope global noprefixroute ens36
       valid_lft forever preferred_lft forever
    inet6 fe80::b6a2:7637:c95c:843e/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever

[root@sre01 network-scripts]# ip addr add 12.12.12.12/24 dev ens36

[root@sre01 network-scripts]# ip addr show ens36
3: ens36: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 00:0c:29:c0:78:db brd ff:ff:ff:ff:ff:ff
    inet 11.11.11.11/24 brd 11.11.11.255 scope global noprefixroute ens36
       valid_lft forever preferred_lft forever
    inet 12.12.12.12/24 scope global ens36
       valid_lft forever preferred_lft forever
    inet6 fe80::b6a2:7637:c95c:843e/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever

指定网卡别名
[root@sre01 network-scripts]# ip addr add 13.13.13.13/24 dev ens36 label ens36:1

[root@sre01 network-scripts]# ip addr show ens36
3: ens36: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 00:0c:29:c0:78:db brd ff:ff:ff:ff:ff:ff
    inet 11.11.11.11/24 brd 11.11.11.255 scope global noprefixroute ens36
       valid_lft forever preferred_lft forever
    inet 12.12.12.12/24 scope global ens36
       valid_lft forever preferred_lft forever
    inet 13.13.13.13/24 scope global ens36:1
       valid_lft forever preferred_lft forever
    inet6 fe80::b6a2:7637:c95c:843e/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever

删除网卡别名
[root@sre01 network-scripts]# ip addr flush dev ens36 label  ens36:1

[root@sre01 network-scripts]# ip addr show ens36
3: ens36: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 00:0c:29:c0:78:db brd ff:ff:ff:ff:ff:ff
    inet 11.11.11.11/24 brd 11.11.11.255 scope global noprefixroute ens36
       valid_lft forever preferred_lft forever
    inet 12.12.12.12/24 scope global ens36
       valid_lft forever preferred_lft forever
    inet6 fe80::b6a2:7637:c95c:843e/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever

通过ifconfig命令

[root@sre01 network-scripts]# ifconfig ens36:0 13.13.13.13/24 up

[root@sre01 network-scripts]# ip addr show ens36
3: ens36: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 00:0c:29:c0:78:db brd ff:ff:ff:ff:ff:ff
    inet 11.11.11.11/24 brd 11.11.11.255 scope global noprefixroute ens36
       valid_lft forever preferred_lft forever
    inet 12.12.12.12/24 scope global ens36
       valid_lft forever preferred_lft forever
    inet 13.13.13.13/24 brd 13.13.13.255 scope global ens36:0
       valid_lft forever preferred_lft forever
    inet6 fe80::b6a2:7637:c95c:843e/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
[root@sre01 network-scripts]# 

[root@sre01 network-scripts]# ifconfig ens36:0 down

[root@sre01 network-scripts]# ip addr show ens36
3: ens36: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 00:0c:29:c0:78:db brd ff:ff:ff:ff:ff:ff
    inet 11.11.11.11/24 brd 11.11.11.255 scope global noprefixroute ens36
       valid_lft forever preferred_lft forever
    inet 12.12.12.12/24 scope global ens36
       valid_lft forever preferred_lft forever
    inet6 fe80::b6a2:7637:c95c:843e/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever