wfIpIgmpGroupPolicyGroups 1.3.6.1.4.1.18.3.5.3.2.6.11.1.10

Group list. This identifies which groups will match this rule. If non-null, The octet string contains one or more 2-tuples of this form: next 4 octets: group number next 4 octets: group mask A null string also means 'match any group'.