Strange telnet behavior with MDS switch and OSX

I am running OSX 10.6, and noticed the following with SAN-OS 3.3.  It like automatically sends the logname with the telnet request (I think), so it prompts you for password, then you just hit return and can get a login prompt and login.  The reason I say it sends the LOGNAME is because if I look at ACS its showing that's what is being sent.  Could be an OSX thing but I just found it wierd.  Incidently I can login to some Cisco routers from my OSX box and i don't have this happen, so something between OSX and MDS.
Cluebox:~ bfeeny$ telnet 172.16.3.151
Trying 172.16.3.151...
Connected to 172.16.3.151.
Escape character is '^]'.
Password:
Login incorrect
MDS1 login: admin
Password:
Cisco Storage Area Networking Operating System (SAN-OS) Software
TAC support: http://www.cisco.com/tac
Copyright (c) 2002-2010, Cisco Systems, Inc. All rights reserved.
The copyrights to certain works contained herein are owned by
other third parties and are used and distributed under license.
Some parts of this software may be covered under the GNU Public
License or the GNU Lesser General Public License. A copy of
each such license is available at
http://www.gnu.org/licenses/gpl.html and
http://www.gnu.org/licenses/lgpl.html

I am running OSX 10.6, and noticed the following with SAN-OS 3.3.  It like automatically sends the logname with the telnet request (I think), so it prompts you for password, then you just hit return and can get a login prompt and login.  The reason I say it sends the LOGNAME is because if I look at ACS its showing that's what is being sent.  Could be an OSX thing but I just found it wierd.  Incidently I can login to some Cisco routers from my OSX box and i don't have this happen, so something between OSX and MDS.
Cluebox:~ bfeeny$ telnet 172.16.3.151
Trying 172.16.3.151...
Connected to 172.16.3.151.
Escape character is '^]'.
Password:
Login incorrect
MDS1 login: admin
Password:
Cisco Storage Area Networking Operating System (SAN-OS) Software
TAC support: http://www.cisco.com/tac
Copyright (c) 2002-2010, Cisco Systems, Inc. All rights reserved.
The copyrights to certain works contained herein are owned by
other third parties and are used and distributed under license.
Some parts of this software may be covered under the GNU Public
License or the GNU Lesser General Public License. A copy of
each such license is available at
http://www.gnu.org/licenses/gpl.html and
http://www.gnu.org/licenses/lgpl.html

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    Message was edited by: Olaf Dieckmann

    Welcome to the Discussions.
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    Hi Monika,
    mschnatt wrote:
    Hello,
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    Regards,
    Levi Pereira
    <font size="1" color="black">Mark the replies answered "helpful" answer or "correct" answer that will help others with same problem.</font><br>
    <font size="1" color="black">Thanks for doing your part to make this community as valuable as possible for everyone!</font><br>

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