Wireless-G Router for Mobile Broadband

The Security Tab - Firewall

Firewall

Firewall Protection. Enable this feature to employ Stateful Packet Inspection (SPI) for more detailed review of data packets entering your network environment.

Block WAN Requests

Block Anonymous Internet Requests. Use this feature to prevent your network from being “pinged,” or detected, by other Internet users. The Block WAN Request feature also reinforces your network security by hiding your network ports. Both functions of the Block WAN Request feature make it more difficult for outside users to work their way into your network. This feature is enabled by default. Remove the checkmark to allow anonymous Internet requests.

Filter Multicast. Multicasting allows for multiple transmissions to specific recipients at the same time. If multicasting is permitted, then the Router will allow IP multicast packets to be forwarded to the appropriate computers. This feature is enabled by default. Remove the checkmark to disable this feature.

Filter Internet NAT Redirection. This feature uses port forwarding to block access to local servers from local networked computers. Click the checkbox to filter Internet NAT redirection, or remove the checkmark to disable this feature.

Filter IDENT (Port 113). This feature keeps port 113 from being scanned by devices outside of your local network. This feature is enabled by default. Remove the checkmark to disable this feature.

Change these settings as described here, and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes.

Chapter 5: Configuring the Wireless-G Router for Mobile Broadband

Figure 5-31: Security Tab - Firewall

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The Security Tab - Firewall

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Linksys WRT54G3G-AT manual Security Tab Firewall, Block WAN Requests
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WRT54G3G-AT specifications

The Linksys WRT54G3G-AT is an advanced wireless router known for its versatility and robust performance in various networking environments. Designed particularly for users who require both wireless and mobile broadband connectivity, this device integrates several key features to cater to the needs of home users and small businesses alike.

One of the standout characteristics of the WRT54G3G-AT is its dual-connectivity option. It not only supports traditional broadband connections through DSL or cable but also offers 3G connectivity, making it ideal for users in areas where wired broadband options are limited or unreliable. With the ability to connect a compatible 3G USB modem, users can maintain internet access even during outages, ensuring continuous connectivity.

The WRT54G3G-AT utilizes the 802.11g wireless standard, providing speeds of up to 54 Mbps. This allows for efficient data transfer and seamless streaming, making it suitable for tasks such as online gaming and video conferencing. Its wireless range is optimized for both indoor and outdoor use, effectively covering medium-sized homes or office spaces without the need for additional access points.

Security is a crucial aspect of any networking device, and the WRT54G3G-AT incorporates advanced features to protect users' data. It supports security protocols such as WPA and WPA2, shielding against unauthorized access and ensuring that sensitive information remains secure. Additionally, the router offers a built-in firewall that adds another layer of protection against potential threats.

Another notable feature of the WRT54G3G-AT is its ease of installation and configuration. With a user-friendly web-based interface, even those with limited technical knowledge can set up the device without hassle. The installation process is streamlined, allowing users to quickly personalize their settings and connect their devices.

The router also includes a range of management tools, allowing users to monitor their network activity and optimize performance as needed. Quality of Service (QoS) settings enable users to prioritize bandwidth for specific applications, ensuring that critical tasks receive the necessary resources.

In summary, the Linksys WRT54G3G-AT is a powerful, flexible wireless router that combines traditional broadband functionality with mobile connectivity options. With robust performance features, security measures, and user-friendly management tools, it serves as an excellent choice for anyone seeking reliable internet access in a variety of environments.
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