Windows firewall trust subnet

Microsoft Windows vista ultimate sp1
February 19, 2010 at 00:07:54
Specs: Windows Vista
Hello everyone.

My network has two subnets, separated by a router. I need to be able to access
resources between the subnets, eg a pc on subnet1 wants to access files shared
on a pc in subnet 2. I've found that this works if i disable windows firewall on the
host sharing the files. Unfortunately this is not a desirable solution as it removes the
layer of security that windows firewall provides. If the firewall isn't disabled, i can't
even ping the computer sharing the files. So, I need to know if there's a way to
make windows firewall behave as if the second subnet is a part of its private

Thank you very much! :D

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February 19, 2010 at 05:49:03
My response to this same question in your other thread was, "why not just disable the windows firewall?"

I highly doubt windows firewall is capable of being set to do anything on the basis of a subnet. It's designed to protect the computer it's running on after all and not a network segment. To be honest though, I have no clue if it can as I would never rely on the windows firewall to protect anything and have therefore never touched it.

You're using SOHO routers with firewalls built into them to separate your subnets. Why would you also need a firewall on a client that's already behind a firewall?

In the computer world we follow the KISS principle whenever humanly possible. Never heard of that one?

KISS = Keep It Simple Stupid

You're overcomplicating your network and if you continue, when something breaks (not if....when) troubleshooting it will be an absolute nightmare.

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February 19, 2010 at 06:25:11
That's a good point, Curt. The only reason I really like having the
windows firewall enabled is because if I disable it the security
centre nags me, or whoever is using the computer. I'll just add
some "allow everything" rules and leave it on doing nothing, and
i'll take the tiny performance hit it brings. Simple is good, after

Thanks for replying. Have a good one.

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February 19, 2010 at 10:06:11
I disable it the security centre nags me, or whoever is using the computer.

Open the Security Center applet in Control Panel. On the left hand side of the window, under "Resources" click on "change the way security center alerts me" and set it so it doesn't bother you any more.

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February 19, 2010 at 23:15:10
That's a good solution. Thank you very much.

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February 20, 2010 at 09:35:15
You're very welcome.

I had that answerhandy because I do not enable automatic updates on windows and of course the security center wanted to complain at me about it. So, I had to figure out how to shut that noise off.

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