sorry, 

http://www.uoguelph.ca/ccs/internet/getting_connected/wireless/securing_with_wpa.shtml

--------------------------------------------------------------------------------
Lelio Fulgenzi, B.A.
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
...there's no such thing as a bad timbit...

  ----- Original Message ----- 
  From: Lelio Fulgenzi 
  To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU 
  Sent: Wednesday, April 04, 2007 1:42 PM
  Subject: Re: [WIRELESS-LAN] 802.1x With A One-Way Certificate


  Here are our instructions. We ask users to check off the appropriate CA and 
it works fine for us. No need to manually download or approve anything.

  It's worked for us.

  
--------------------------------------------------------------------------------
  Lelio Fulgenzi, B.A.
  Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
  (519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
  ...there's no such thing as a bad timbit...

    ----- Original Message ----- 
    From: ktaillon 
    To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU 
    Sent: Wednesday, April 04, 2007 1:39 PM
    Subject: Re: [WIRELESS-LAN] 802.1x With A One-Way Certificate


    One of the things that I didn't point out is we are running the new LWAPP
    AP's and controller setup. After I told Cisco about the one-way cert he said
    this is ok to run in this setup because the peap tunnel that is created from
    the client to the AP and to the ACS/Controller could not be interfered with.
    Not like a web server cert that could be hijacked.

    If I were to install a Cert(Verisign, GTE.....)on the ACS that is on the XP
    list of trusted names, can the client just check off that name without
    having to go to a web server to download and install the cert?

    I'm just trying to keep the client setup as simple as possible but not in a
    way that lowers security.

    Ken


    -----Original Message-----
    From: Michael Griego [mailto:[EMAIL PROTECTED] 
    Sent: Wednesday, April 04, 2007 11:27 AM
    To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
    Subject: Re: [WIRELESS-LAN] 802.1x With A One-Way Certificate

    Just be aware that not validating the certificate opens you up to fairly
    easy session hijacking attacks since anyone can come up with a cert and get
    your clients to connect to their APs instead of yours (since the client is
    not checking cert validity)...  The attacker would then have access to the
    data stream as it would appear on the LAN, so you potentially lose a lot of
    the security benefit.

    --Mike


    On Apr 4, 2007, at 10:19 AM, Rick Coloccia wrote:

    > Yes.  We aren't using the wpa-tkip with acs, but we do use ias
    > (windows) for radius, we have our clients uncheck the 'Validate Server 
    > Certificate' option and away they go.
    >
    > http://www.geneseo.edu/CMS/display.php?page=5200&dpt=cit
    > http://www.geneseo.edu/CMS/display.php?page=5198&dpt=cit
    > http://www.geneseo.edu/CMS/display.php?page=5199&dpt=cit
    >
    > We like how it works.  We run 4 4404's with 350 1242ag access points.
    >
    > -Rick
    >
    >
    > ktaillon wrote:
    >> We are trying to implement a WPA/TKIP Wireless authentication. We are 
    >> using ACS Solution Engine which backs into AD for Authentication. We 
    >> are currectly using WEP.
    >>  We are looking for the least amount of client setup to make this 
    >> change. Cisco has told us to use the PEAP MSCHAPv2 connection with a 
    >> one-way cert, the cert or CA would only be installed on the ACS 
    >> server and the client would uncheck the 'Validate Server Certificate' 
    >> under the protected EAP properties. They also told us that the PEAP 
    >> tunnel that is created would be comparable to having a cert on the 
    >> client. This seems to be working fine in our tests and is very simple 
    >> setup for the clients.
    >>  Are any of you running your connection setup this way?
    >>  Ken Taillon
    >> Network Support Specialist
    >> Information Technology Services
    >> Wesleyan University
    >> 860-685-5657
    >>  ********** Participation and subscription information for this 
    >> EDUCAUSE Constituent Group discussion list can be found at http:// 
    >> www.educause.edu/groups/.
    >
    > --
    > Rick Coloccia,  Jr.
    > Network Manager
    > State University of NY College at Geneseo
    > 1 College Circle, 119 South Hall
    > Geneseo, NY 14454
    > V: 585-245-5577
    > F: 585-245-5579
    >
    > **********
    > Participation and subscription information for this EDUCAUSE 
    > Constituent Group discussion list can be found at http:// 
    > www.educause.edu/groups/.


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