ARRIS Consumer Care

SBG6580-2: Port Filtering Setup

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Question

How do I configure the SBG6580-2 to block users from accessing specific Internet services?

Answer

The SBG6580-2 can block ports from being accessed by services. Ports are virtual pathways numbered between 0 and 65535 that the SBG6580-2 and other devices use to sort incoming and outgoing network traffic. The SBG6580-2 network's security can be improved by blocking and filtering communications going through the ports. In general, unless there is a specific reason, there shouldn't be a need to manually filter ports. For most people, the SBG6580-2's firewall (when active) provides a good level of security by blocking ports except those used by common services. Port Filtering is not enabled by default. This document describes how to enable and configure Port Filtering.

Port Filtering Setup

Launch a Firefox or Safari browser. Enter http://192.168.0.1 into the address box, and press the Enter key.

NOTE: A browser message on Chrome, Edge, Firefox, and Opera, may appear when accessing the Web Manager. The message includes 192.168.01 uses an unsupported protocol and ERR_SSL_VERSION_OR_CIPHER_MISMATCH. The Web Manager uses an earlier version of the TLS protocol and does not match the version allowed by the web browser. Safari browsers on Apple PC and mobile devices are not impacted. The workaround to access the Web Manager with a PC is to use the Firefox browser and set the TLS version to 1. For workaround instructions refer to article # 19435 - 192.168.0.1 uses an unsupported protocol.
A security or private risk alert may appear on the web browser advising users to proceed with caution when accessing the Web Manager. There is no risk in proceeding to the Web Manager. For instructions to bypass the alert screen, refer to article # 18181 - Alert Message for Web Manager Access.
On the Login page, enter admin or a customized username in the Username field.
Enter password or a customized password in the Password field.

NOTE: On later versions of the SBG6580-2, the Wi-Fi Security Key is used as the default admin password printed on the bottom white label. For assistance with Web Manager Access, refer to article # 18752 – SBG6580-2: Web Manager Access.
Click the Login button. The Home page will appear.
Move the mouse cursor over Advanced on the main menu, and click the Port Filtering link on the sub-menu. The Advanced - Port Filtering page will appear.
On the Advanced - Port Filtering page, enter the desired port number in the Start Port & End Port fields.

NOTE: When forwarding a range of ports, enter the start and end of the port range in the two fields.
Click the Protocol drop-down menu and select the appropriate protocol (TCP, UDP, or Both).
Select the Enabled option.
Click the Apply button.