set  [node node-id] x25 protocol group group-name ...

    Modifies the attributes of an x25 protocol group entity, which
    specifies a number of DTEs that make up a closed user group (CUG).
    Modifiable attributes and their data types (in brackets) are:

    members [set of records]
    remote dte address [dte-address]
    type [CUG, BCUG, or CUGOA]
    rights identifiers [set of simplenames]
    acl [access-control-list]