Educause Security Discussion mailing list archives

FW: [mobility] FW: FW: Wireless Security/Support


From: james sankar <james.sankar () AARNET EDU AU>
Date: Thu, 21 Apr 2005 09:34:30 +1000

Hi Micheal

Tim Chown, has replied to your query via the tf-mobility list hosted by
TERENA, please see below

Best Regards

James Sankar
----------------------------------------------------
Network Engineer - Middleware
AARNet Pty Ltd
Canberra, Australia
 
Tel: +61 2 6222 3530 (main switchboard)
Fax: +61 2 6222 3535

-----Original Message-----
From: Tim Chown [mailto:tjc () ecs soton ac uk] 
Sent: Wednesday, 20 April 2005 6:44 PM
To: james sankar
Subject: Re: [mobility] FW: FW: [SECURITY] Wireless Security/Support

Aha - an official aarnet address, nice :)

He could deploy both with the new Cisco AP code that broadcasts 2 SSIDs?

Tim

On Wed, Apr 20, 2005 at 12:25:10PM +1000, james sankar wrote:
Hi Mobilities,

Could anyone answer Michael's question below related to the debate on
VPN / WPA that was raised on the educause security list?

Thanks in advance

James

-----------------------------------------------------
Network Engineer - Middleware
AARNet Pty Ltd
Canberra, Australia
 
Tel: +61 2 6222 3530 (main switchboard)
Fax: +61 2 6222 3535

-----Original Message-----
From: Michael Lymbery [mailto:mlymbery () scu edu au] 
Sent: Wednesday, 20 April 2005 12:11 PM
To: james sankar
Subject: Re: FW: [SECURITY] Wireless Security/Support

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Sure thing

Thanks James

james sankar wrote:

Hi Michael

Could I pass the email onto the Terena Mobility list in Europe as
there has been a lot of debate recently on WPA and they have
experience with VPN too and I'm sure they could provide the answers
you are looking for.

Best Regards

James Sankar -----------------------------------------------------
Network Engineer - Middleware AARNet Pty Ltd Canberra, Australia

Tel: +61 2 6222 3530 (main switchboard) Fax: +61 2 6222 3535
-----Original Message----- From: Michael Lymbery
[mailto:mlymbery () SCU EDU AU] Sent: Tuesday, 19 April 2005 10:42 PM
To: SECURITY () LISTSERV EDUCAUSE EDU Subject: [SECURITY] Wireless
Security/Support


I have been designing our wireless networking architecture at SCU
and we have gone through the obligatory VPN or WPA debate. We had
settled on VPN for a variety of reasons but just recently I was
asked to re-evaluate WPA.

As part of the VPN design I included a transparent proxy/web server
to provide the function of allowing a user to connect to the
wireless network without a tunnel. Then when they try to browse
the transparent proxy would redirect them to a web page HOWTO on
connecting which would contain a pre-configured VPN client and
connection instructions. To do this we would have the client,
tranparent proxy and VPN interface on the same subnet. The
transparent proxy would deliver DHCP addresses with itself as the
default gateway in order to catch all outgoing web-requests without
having the transparent proxy inline. When the VPN client connects
it does so directly (doesn't need to be routed as it is on the same
subnet) thus bypassing the transparent-proxy for VPN access. This
is all great for the VPN design but I have not found a similar
method of doing so if I was to use WPA.

We are using Cisco Aironet APs if that is helpful. So to
re-phrase, I would like to know if anybody else has a similar
support system in place (transparent proxy with help pages) being
used in conjunction with WPA infrastructure. My apologies if I am
posting this on the wrong list, just let me know and I will be on
my way.

Thanks Michael


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- --
Michael Lymbery
Network Engineer

Information Technology and Telecommunication Services
Southern Cross University
PO Box 157 Lismore NSW 2480

Ph:  61 2 6620 3549
Fax: 61 2 6620 3033
Email: mlymbery () scu edu au
http://www.scu.edu.au
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-- 
Tim/::1

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