SBS 2k3 gateway

Microsoft / N/A
January 16, 2009 at 14:18:03
Specs: sbs 2003, N/A

I have a windows sbs 2k3 server acting as a PDC. There are 2 Nics installed one to the public network one to the private

I noticed the other day that I could use the ip of this machine as a gateway to get out on the other NIC. I was a little confused since I dont remember turning on any tcp forwarding.

I was just curious if anyone knows why this is happening and how I might be able to turn it off.

thank you for your time

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January 16, 2009 at 15:43:41
particularly which nic, lan or wan, and from where, a workstation?

Is RRAS installed?
Is bridging installed?

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January 17, 2009 at 05:36:57
nic a = ip no gateway
nic b = GW (public)

Any workstation on the lan seems to be able to use this as a gateway to get out onto the internet bypassing the content filtering on the correct gateway.

I did not install this box and have done more with *nix servers than windows, so I am a bit unfamiler with how certain things are performed on here.

The routing and remote access service is started and there is an icon for it in administrative tools.

Bridging does not seem to be set up as far as I can tell.

if RRAS is what is allowing this is there a way for me to block lan connections from going out, but still allow incoming connections from outside?

Thank you for your time

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