cvs server set up

[Alberto Báguena]

Hi,
I am working with RH7.1 and I have configured my cvspserver file(with
mailing list's help) like this:
==========================
service cvspserver
{
        flags           = REUSE
        socket_type     = stream
        protocol        = tcp
        wait            = no
        user            = root
        server          = /usr/bin/cvs
        server_arg      = -f --allow-root=/usr/local/repositorio pserver
        disable         = no
        passenv         = PATH
}
============
and my services file like this:
======
cvspserver      2401/tcp                        # CVS client/server operations
cvspserver      2401/udp                        # CVS client/server operations
==========
I am restarted the xinetd file but I can not connect to the server:

$ export CVSROOT=:pserver:address@hidden:/usr/local/repositorio
$ cvs login
(Logging in to address@hidden)
CVS password:
cvs login: unrecognized auth response from server:
Usage: cvs [cvs-options] command [command-options-and-arguments]
cvs [login aborted]: shutdown() failed, server myserver:
Transport endpoint is not connected

I have listened on Manual that I can use a "debugging tool" typing in the
remote host:
$telnet myserver 2041
and sending any text.
If CVS is working correctly,it will respond:
cvs [pserver aborted]:bad auth protocol start:foo
but , by instead, it responds:
Usage: cvs[cvs-options] command-options-and-arguments] ...

I am 2 days trying install the CVS server and I do not know what more do.
Any suggestion? What is it I am doing wrong?
Thanks a lot, Alberto.