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Blocking ports on VPN server

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3 replies

by johnnyextreme

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I have a Win2K server, a member server on a mixed network of NT and Win2K, whose only purpose is to provide VPN server via public IP address, so users can logon to network via dialup ISP. Using IP filter under TCP/IP Advanced what ports must I leave open for a fully functional VPN?

3 replies

by johnnyextreme

Too bad you can't close ports on a specific interface - whatever you filter applies to all NICs. If I could, I'd close everything but 1723 on the public interface. Thanks for the port number. Now I have to figure out what other ports I need open for domain authentication, etc.

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