The access list type used to define the match conditions for the
DiffServ class. This attribute is only valid if the value of
agentDiffServClassType is set to acl(3).
When this attribute is set to ip(1), the agentDiffServClassAclNum
object is interpreted as an IP ACL number per the aclIndex definition
from the NETGEAR-QOS-ACL-MIB. When set to mac(2), the agentDiffServClassAclNum
object is interpreted as a MAC ACL index per the aclMacIndex definition
in the NETGEAR-QOS-ACL-MIB. Both this object and agentDiffServClassAclNum
must be set (in either order) for an agentDiffServClassType of acl(3).