| Hi Everybody,
|
| We have some concern over secuirty with 802.11b access. If
| I use IPSec thorugh Win2K/Active Directory to the wireless
| clients, how does it going to affect the bandwith and
| client performance? Wireless i based on CISCO Aeronets and
| are there any other options which I can use o provide
| added security. My company is a insurance/financial
| organization and sme people are concerned about the
| security.
|
| Thanks in advance.
|
This is really more of a networking question then an Active Directory
question, but I will do my best to answer the question. IPSec will add some
overhead to the packets being sent across your network. It really makes no
difference if they are wired or wireless, the overhead still exists because
the packets are being encrypted and decrypted. Obviously, the main
difference between your wired and wireless clients are the speed at which
they will communicate on the network. Your wired clients, more then likely,
are communicating at 100 Mbs. Your wireless clients are communicating, at
best, at 11 Mbs. Therefore, it is conceivable that your wireless clients
may see some kind of performance hit from applying IPSec.
However, I find this very unlikely given the typical type of traffic most
wireless clients are using. If we assume most of your wireless clients will
participate in common file sharing, printing, e-mail and web surfing they
will probably be fine with IPSec. On the other hand, if they are doing a
lot of high traffic networking like SQL or other database type
communications, there could be a problem.
My recommendation would be to deploy IPSec in a test environment and try to
duplicate your corporate network as best as possible. This will allow you
to better evaluate how IPSec will affect your environment.
Chad A. Lacy
Windows 2000 Directory Services
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