Configure multiple ip addresses for one NIC: [root @ localhost ~] # Ifconfig eth0: 1 192.168.10.64 netmask 255.255.255.0 up

[Root @ localhost ~] # Ifconfig eth0: 1 192.168.10.63 netmask 255.255.255.0 up (add IP on this Nic)

Ah, only one sentence

[Root @ localhost ~] # Ifconfig-

Delete
[Root @ localhost ~] # Ip addr del 192.168.10.63 dev eth0: 1

Warning: Executing wildcard deletion to stay compatible with old scripts.
Explicitly specify the prefix length (192.168.10.63/32) to avoid this warning.
This special behaviour is likely to disappear in further releases,
Fix your scripts!

[Root @ localhost ~] # Ip addr del 192.168.10.63/32 dev eth0: 1