Is it possible to use packet filters on an NT machine?
NT 4 comes with built-in support for packet filtering. It is a simple but still usable filtering function that the administrator can configure to just let some IP packets reach the actual applications running on the system. You find configuration panel for the filtering function on “Control Panel->Network->TCP/IP->Services->Advanced->Security” Be aware that this simple filtering mechanism is not a substitute for a real firewall since it cannot do advanced stuff like protection against ip-spoofing, etc. 2.6.3 What ports must I enable to let NBT (NetBios over TCP/IP) through my firewallFirst of all, you should really, really reconsider if this is such a good idea to let NBT traffic through your firewall. Especially if the firewall is between your internal network and Internet. The problem with NBT is that at once you open it up through the firewall, people will have potential access to all NetBios services, not just a selection of them, such as printing. The following is a list of the po
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- Is it possible to use packet filters on an NT machine?
