Chapter 4: Web Configuration

Firewall

The firewall is a software that interrupts the data between the Internet and your computer. It is the TCP/IP equivalent of a security gate at the entrance to your company. All data must pass through it, and the firewall (functions as a security guard) will allow only authorized data to be passed into the LAN.

What the firewall can do? It can:

deny or permit any packet from passing through explicitly

distinguish between various interfaces and match on the following fields: source and destination IP address

port

To keep track of the performance of IP Filter, a logging device is used which supports logging of the TCP/UDP and IP packet headers and the first 129 bytes of the packet (including headers) when a packet is successfully passed through, a packet is blocked from passing through and it matches a rule setup to look for suspicious packets

IP Filtering

An example for firewall setup:

This picture is the most common and easiest way to employ the firewall. Basically, you can install a packet-filtering router at the Internet gateway and then configures the filter rule in the router to block or filter protocols and addresses. The systems behind the router usually have a direct access to the Internet, however some dangerous services such as NIS and NFS are usually blocked.

For the security of your router, set the firewall is an important issue.

Choose Disabled to disable the firewall function.

To open the IP Filtering, please click the Enabled radio button. The web page will be shown as the right picture.

Select the direction to filter packets:

The way of the data transmission. In Bound means the data is transferred from outside onto your computer. Out Bound means the data is transferred from your computer onto outside through Internet. Please choose Outbound traffic or Inbound traffic as the direction for filtering packets

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Dynalink RTA770W user manual Firewall, IP Filtering, Select the direction to filter packets

RTA770W, RTA770 specifications

The Dynalink RTA770 is a versatile and powerful router designed to meet the demands of modern home and small business networking. Recognized for its reliability and performance, the RTA770 incorporates advanced technologies that enhance connectivity and overall user experience.

One of the main features of the RTA770 is its dual-band capability, offering simultaneous 2.4 GHz and 5 GHz frequency bands. The dual-band functionality allows for greater flexibility in network connections, reducing interference and optimizing performance. The 2.4 GHz band is ideal for devices like smartphones, tablets, and smart home devices that require a stable signal over longer distances. Conversely, the 5 GHz band caters to bandwidth-intensive activities such as online gaming, streaming high-definition videos, and video conferencing, providing faster speeds with reduced latency.

The RTA770 is equipped with the latest Wi-Fi 6 technology, which significantly boosts speed and efficiency. Wi-Fi 6, also known as 802.11ax, enhances wireless throughput, allowing multiple devices to connect simultaneously without compromising on performance. This is especially beneficial for households with numerous smart devices and users, ensuring a seamless online experience.

Security is a prominent consideration in the design of the RTA770. It features advanced encryption protocols, including WPA3, which offers improved protection against unauthorized access and ensures that personal information remains secure while browsing the internet. The router also supports guest network capability, allowing visitors to access the internet without exposing the primary network.

In terms of connectivity, the RTA770 boasts several ports including Gigabit Ethernet ports that facilitate wired connections for devices such as gaming consoles, smart TVs, and computers. This ensures optimal network performance for devices that require stable connections.

Furthermore, the Dynalink RTA770 includes an easy-to-use web interface for quick setup and management of network settings. Users can conveniently monitor connected devices, configure parental controls, and manage bandwidth allocation.

Overall, the Dynalink RTA770 stands out as a robust networking solution, combining dual-band performance, cutting-edge Wi-Fi 6 technology, enhanced security features, and user-friendly management tools. This makes it a compelling choice for both home users and small businesses looking to improve their network infrastructure.