--umbrella[=[deviceid:<deviceid>][,orgid:<orgid>][,assetid:<id>]]
Embeds the requestor's IP address in DNS queries forwarded upstream.
If device id or, asset id or organization id are specified, the information is
included in the forwarded queries and may be able to be used in
filtering policies and reporting. The order of the id
attributes is irrelevant, but they must be separated by a comma. Deviceid is
a sixteen digit hexadecimal number, org and asset ids are decimal numbers.