System : System > Licenses

Node License Status
A node is a computer or other device connected to your LAN with an IP address.
If your firewall is licensed for unlimited nodes, the Node License Status section displays the message: The SonicWALL is licensed for unlimited Nodes/Users. No other settings are displayed.
If your Dell SonicWALL security appliance is not licensed for unlimited nodes, the Node License Status table lists how many nodes your security appliance is licensed to have connected at any one time, how many nodes are currently connected, and how many nodes you have in your Node License Exclusion List.
The Currently Licensed Nodes table lists details on each node connected to your security appliance. The table is not displayed if no nodes are connected.
Excluding a Node
When you exclude a node, you block it from connecting to your network through the security appliance. Excluding a node creates an address object for that IP address and assigns it to the Node License Exclusion List address group.
To exclude a node:
1
Select the node you want to exclude in the Currently Licensed Nodes table on the System > Licenses page, and click the Edit icon in the Exclude column for that node.
2
You can manage the License Exclusion List group and address objects in the Network > Address Objects page of the management interface. Click the Node License Exclusion List link to jump to the Network > Address Objects page. See Network > Address Objects for instructions on managing address objects.