This object represents an FC address that needs
to be matched with the source address in a
FC frame. This address can be either an 8 octet
long FC World Wide Name (WWN) or a 3 octet long
FC-ID. If this object is set to an FC-ID, then
it can be optionally followed by a 3 octet mask.
The mask can have one of the following values:
0xff0000 or 0xffff00 or 0xffffff.
The zero-length string means no address is
configured for matching with the source address
in a FC frame. Setting this object to the zero
length string is equivalent to disabling this
match criterion.