How does domain isolation with Windows 2003 IPsec happen?

How does domain isolation with Windows 2003 IPsec happen?

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Subject Author Date
How does domain isolation with Windows 2003 IPsec happen? Simon 10-28-2008
Posted by Simon on October 28, 2008, 11:56 pm
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Hi all,

I have a question regarding implementing domain isolation with IPsec
support from Windows 2003 (or higher.)

From the examples online, you only need to join a few machines into
the domain and they are magically protected from outsider attacks and
eavesdropping. I am wondering how exactly this should be configured,
especially using a group policy distributed from the domain
controller.

How should I write this policy in the domain controller? The most
naive way is to list all the IP addresses of all the domain members in
a filter list, and apply "secure" action to this filter. My questions
is, what if a new computer joins the domain or someone left? Do I,
presumably the domain admin, need to reconfigure the filter list every
time?

Is there a better way of doing this? Or, can some one show me the
correct way of doing it?
Thanks a lot!

-Simon

Posted by Steve Riley [MSFT] on October 30, 2008, 5:19 pm
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The domain isolation principle is uses IPsec with Kerberos authentication.
Servers receive policies that require inbound communications to be protected
with IPsec; clients receive policies instructing them to use IPsec when
communicating to severs within whatever address range you define.

http://technet.microsoft.com/en-us/network/bb545651.aspx has links to
various resources.

--
Steve Riley
steve.riley@microsoft.com
http://blogs.technet.com/steriley
Protect Your Windows Network: http://www.amazon.com/dp/0321336437



> Hi all,
>
> I have a question regarding implementing domain isolation with IPsec
> support from Windows 2003 (or higher.)
>
> From the examples online, you only need to join a few machines into
> the domain and they are magically protected from outsider attacks and
> eavesdropping. I am wondering how exactly this should be configured,
> especially using a group policy distributed from the domain
> controller.
>
> How should I write this policy in the domain controller? The most
> naive way is to list all the IP addresses of all the domain members in
> a filter list, and apply "secure" action to this filter. My questions
> is, what if a new computer joins the domain or someone left? Do I,
> presumably the domain admin, need to reconfigure the filter list every
> time?
>
> Is there a better way of doing this? Or, can some one show me the
> correct way of doing it?
> Thanks a lot!
>
> -Simon


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