To add an IP Alias to interface en0
chdev -l en0 -a alias4=10.110.201.61,255.255.255.0
To remove the alias from interface en0
chdev -l en0 -a delalias4=10.110.201.61,255.255.255.0
To add an IP Alias to interface en0
chdev -l en0 -a alias4=10.110.201.61,255.255.255.0
To remove the alias from interface en0
chdev -l en0 -a delalias4=10.110.201.61,255.255.255.0