If dosDefenseAttackType is Land(6), the type of port.
For other values of dosDefenseAttackType, this object
returns notapplicable(0).
A device connected to a client(1) port should have an IP
address in the local subnet, and be the original source or
ultimate destination of packets transiting the network.
Incoming packets should have a source address in the local
subnet. Outgoing packets should have a destination address
in the local subnet.
A gateway(2) port is connected directly to a gateway device
attached to external networks. Apart from a small number of
packets from the gateway device itself, all packets arriving
at the gateway port should be from other subnets. Incoming
packets should have a source address not in the local
subnet. Outgoing packets should have a destination address
not in the local subnet.