rsh -x sending command in the clear?

[Will Fiveash]

I was doing some kerberized rsh testing using MIT 1.2.5 and I noticed
when doing:

    /usr/local/bin/rsh -x myhost.com 'echo hello'

that the 'echo hello' command is sent in the clear to the remote host
even though I specified the -x flag (encrypt network session data).
Is this expected behavior?  If so, it seems to me that the rsh man
page and the string output by rsh, "This rsh session is using DES
encryption for all data transmissions.", should mention the command is
being sent in the clear.

-- 
Will Fiveash
Sun Microsystems Inc.
Austin, TX, USA (TZ=CST6CDT)