The value of the identity information for this Group Member's
registered Key Server with its type indicated by the
cgmGdoiGmRegKeyServerIdType. Use the
cgmGdoiGmRegKeyServerIdType to parse the registered Key
Server's ID correctly. This Key Server ID value is sent as
the 'SRC Identification Data' and 'DST Identification Data'
of the KEK and TEK payloads for GDOI GROUPKEY-PULL and
GROUPKEY-PUSH exchanges.