This object indicates the IP Source Guard action
applied at this interface with respect to IP traffic.
permitIpAddress(1) indicates that IP traffic coming
from the IP address denoted by cdsIfSrcGuardAddress
object will be allowed to go through.
denyAllIpAdress(2) indicates that all IP traffic
coming to this interface will be dropped. The value
of cdsIfSrcGuardAddress object will be ignored in
this case.