Activating the IPv4 firewall on your modem is optional. When the firewall is enabled, the security of your network is enhanced, but some network functionality will be lost.
Note: Your modem settings may appear slightly different from the images below, but the steps will be the same.
1. Connect a device to your network over WiFi or using an Ethernet cable connected to your modem. This works best on a tablet or computer.
2. Open a web browser and type http://192.168.0.1 into the web address field.
3. Sign in to the modem settings (GUI) using your Admin Username and Admin Password, printed on the sticker.
You can find the Admin Username and Password printed on the sticker attached to the side, back or bottom of the modem.
CAUTION!Do not remove your modem sticker. It includes your default Admin Username and Admin Password, which cannot be retrieved if lost. Your modem could become unusable without them.
4. Select Advanced Setup in the main menu.
5. Select IPv4 Firewall in the left sidebar.
6. Follow the steps to set up the IPv4 firewall.
Step 1: Enable/Disable stealth mode. Do not enable stealth mode unless you fully understand the impact.
Step 2: Set the IP address or addressing type to which the firewall will apply.
Step 3: Set the firewall security level.
Step 4: Check/uncheck selections in the firewall table to allow or block different kinds of incoming and outgoing traffic.
Step 5: When you're finished modifying the rules, click "Apply" to save your changes.
About "Stealth Mode": Stealth mode prevents the router from responding to probing requests. The router will still answer incoming requests for authorized apps. Unexpected requests, such as ICMP (ping) are ignored. Do not enable Stealth Mode unless you understand the technical impacts.
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