'Streams' on UNIX System V supporting UDP/IP :Info needed.

[C. V. R. Murthy]

Hello,
PREFACE:
             It is well known that the  stream mechanism in System V is
extremely modular in that it enables flexible PUSHing of protocol layers onto
the stream.
I am trying to port an RPC package developed (on BSD environment) at CMU to the
System V.
The RPC package uses DATAGRAM sockets supported by UDP/IP prtocols.

QUESTION:
            Is there any System V out there (there must be one !) on the
Internet using UDP/IP protocols
to communicate with the outside world ?

If so, thank god!  I need the following  information on the same :
   1.   What sort of interface to the device it employs : old-styled or stream ?
   2.   System Release Version.
   3.  References to the relavant documentation and technical details.

 Thanks Very much to any body who cares to reply.
Murthy (cm36 at andrew.cmu.edu)