Indicates that the mask is to be logical-ANDed with the destination address before being compared to the value in the swL3IpStaticRouteDest field. For those systems that do not support arbitrary subnet masks, an agent constructs the value of the swL3IpStaticRouteMask by referring to the IP Address Class. Any assignment (implicit or otherwise) of an instance of this object to the value x must be rejected if the bitwise logical-AND of x with the value of the corresponding instance of the swL3IpStaticRouteDest object is not equal to swL3IpStaticRouteDest.