Search command sample in the internet.It is the result.
rpcping -v オプション
rpcping -v 3
windows server 2008 r2 - RDG RPC 401 failure when not joining AD domain aka Workgroup mode - Server Fault : http://serverfault.com/questions/534580/rdg-rpc-401-failure-when-not-joining-ad-domain-aka-workgroup-mode