& $SG_TEST_EXENV ./mmrpc_server$EXEEXT 4002 --log=root.fmt:%m%n 
> Launch server (port=4002)
> Exiting GRAS

$ $SG_TEST_EXENV ./mmrpc_client$EXEEXT 127.0.0.1 4002 --log=root.fmt:%m%n 
> Launch client (server on 127.0.0.1:4002)
> Connected to 127.0.0.1:4002.
> >>>>>>>> Connected to server which is on 127.0.0.1:4002 <<<<<<<<
> >>>>>>>> Request sent to 127.0.0.1:4002 <<<<<<<<
> >>>>>>>> Got answer from 127.0.0.1:4002 (values are right) <<<<<<<<
> Exiting GRAS