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I Have a network at home with a PFSense Software firewall. There are about 2 pcs and 3 laptops that connect to the internet through this firewall. I would like to use the Firewall rules to block internet access for one of these devices on the network. The one that I want to block does have a static IP address assigned, and I also know its MAC address. I just cant seem to be able to figure out how to create a rule that will effectively block internet access for that one device. But I still want that device to be able to access the network internally, such as network printers shared drives etc.

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can you provide us a sample rule template ? –  Revolter Sep 15 '09 at 4:30
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migrated from superuser.com Sep 15 '09 at 7:39

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3 Answers

up vote 5 down vote accepted

Add a LAN Firewall rule to block the IP of the guy by going to Firewall -> Rules -> LAN:

alt text

And be sure your rule is before the default "allow everyone" rule; since rules are processed top down, in order, until it finds one that matches.

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Not a pfsense person, but the actual PF rules you need are as follows.

block in on <internal interface> from <static ip> to any
pass in on <internal interface> from <static ip> to <internal network>
pass out on <internal interface> from <static ip> to <internal network>
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Go to the Firewall->Rules Page and click on the LAN-Tab. Add a new rule at the top with the following settings:

Action: Block
Protocol: Any
Source: Single Host or Alias | <IP-Adress>

Please keep in mind, that this will block a single IP-Adress. So if the IP of the Host is changed, it can access the Internet again.

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Hi bico. I have tried this, but for some reason that host is still able to access the internet. I verified the IP did not change because it is assigned by Mac Address so it never changes. That is the reason I resorted to posting this question here. –  7wp Sep 15 '09 at 22:52
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