This object is applicable to h3cIpaFWListTable only.
If the value is 'inbound', then inbound ip packets which are denied by firewall
are accounted.
If the value is 'outbound', then outbound ip packets which were denied by firewall
are accounted.
If the value is 'nodirection', neither inbound nor outbound ip packets
which were denied by firewall are accounted.
If the value is 'bidirection', both inbound and outbound ip packets which
were denied by firewall are accounted.