Library /sys$common/syshlp/tcpip$ucp_help.hlb ADD, PROXY, Qualifiers, /REMOTE_USER  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /REMOTE_USER=user

    Required for a communication proxy. Not valid on NFS proxy.

    Specifies the remote client's user name.

    A wildcard is allowed.