Using the Configuration Interface

Configuring an Inbound Filter Rule

When the Rule List is empty or none of the rules are enabled, all inbound data that corresponds to a connection that originated from inside the router or which corresponds to a Virtual Server, Gaming, or Special Application Rule is ALLOWED by default.

When rules are configured, the router compares incoming data packets against the rules in the list. It is very important to understand that the router examines each rule one by one in the order that they are listed in the Rule list until it finds a match. The packet will either be DENIED (Dropped) or ALLOWED. Once a match has been made, no further rules will be examined for that packet. If no rules match the data packet, it is ALLOWED. This means that to allow only a specific subset of traffic usually requires more than one rule to be entered.

Example:

You have configured a game server, using the Advanced > Gaming page, to play HALO: Combat Evolved with some friends. You would like to limit the access to your network and server to specific times of the day and only to your friends.

Next you would define a schedule on the Tools > Schedule page, called Gametime, which specifies a schedule of Friday and Saturday between 7PM and 11PM.

All of your friends use the same service provider and have IP addresses 67.150.220.117, 67.150.231.43, and 67.150.231.75. You have an option of defining a set of rules to match each one of these addresses individually or you may just decide that using an IP range that covers all of them is sufficient for your needs.

The first rule is to configure a DENY rule that will catch all of the traffic that arrives on these ports but does not match data from the sources you want to have access to your network. It is important to enter the DENY rule first since all subsequent rules will be added higher in the list and will be checked first. It should look similar to the figure on the right.

Notice that it covers all Source IP Address, Source Ports, and Times (Always), but is specifically tied to the Public Ports defined in the Game Rule List. This is because you do not want to accidentally block traffic for other applications. It is a good idea to turn on the log for this rule so that you can check in the log for anything that is filtered inappropriately.

Next configure the ALLOW rules. In the example on the right, two rules are used to cover the three

IP addresses.

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D-Link DGL-4300 manual Configuring an Inbound Filter Rule
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DGL-4300 specifications

The D-Link DGL-4300, also known as the Gaming Router, is designed specifically for gamers who require fast, reliable, and uninterrupted internet connectivity. Launched in the mid-2000s, this device has carved a niche in the gaming community for its robust features that cater to online gaming enthusiasts.

One of the standout features of the DGL-4300 is its support for the 802.11g wireless standard, which allows for wireless speeds of up to 54 Mbps. With this capability, gamers can enjoy seamless online gameplay without the frustration of lag, which is crucial when competing in high-stakes multiplayer environments. The router also boasts four 10/100 Ethernet LAN ports, providing wired connections for devices that demand even lower latency, such as gaming consoles and PCs.

Quality of Service (QoS) technology is another significant highlight of the DGL-4300. This feature prioritizes gaming traffic over standard internet usage, ensuring that your gaming sessions are smooth and devoid of interruptions caused by other applications consuming bandwidth. Gamers can assign priority levels to different devices and applications, allowing for optimized performance tailored to their needs.

In addition to gaming, the DGL-4300 supports secure wireless connectivity through its advanced encryption methods, including WPA and WPA2. This security ensures that personal data stays protected while users enjoy online gaming, streaming, or browsing. Moreover, the router’s built-in firewall and various security protocols safeguard the network from potential threats.

The DGL-4300 also includes a user-friendly web interface for easy configuration and management. Users can swiftly set up their network, manage device permissions, and monitor bandwidth usage, making it accessible even for those who may not be tech-savvy.

Overall, the D-Link DGL-4300 distinguishes itself with its gaming-centric design, solid wireless capabilities, and advanced traffic management features. This router has remained popular among gamers for its reliability and performance, adapting well to the demanding needs of online gaming. Whether you’re a casual player or a serious competitor, the DGL-4300 provides the backbone for an exhilarating online gaming experience.
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