From: Tom Mueller <tom.mueller_at_oracle.com>
Date: Fri, 12 Aug 2011 11:29:02 -0500

When running any remote asadmin command, including "create-cluster", you
need
to specify the admin port number for the DAS for the domain. So for your
domain with portbase
of 30000, you would use:

asadmin --port 30048 create-cluster c1

Tom