The Default Setting of the NB5 does not provided access from the Internet to any services hosted on the LAN. In other words, by default the firewall function is fully enabled and the only incoming packets allowed are those elicited by a request from a LAN client.

The NB5 Access Control function allows selective access to services through the Firewall, categorised by service type (Web, FTP, Telnet, etc) and optionally filtered by IP address. So, for example, you are able to provide Telnet access to your LAN to anonymous users, or for a particular IP address, or for a list of IP addresses.

The DMZ configuration directs all anonymous internet traffic to an IP address which you can allocate to a computer dedicated to that purpose, thereby providing another controlled method of providing access through the firewall.

Finally, IP filtering provides a fine-grained method for controlling the flow of data to and from the Internet and also between LAN clients.

Firewall

NetComm NB5 Ethernet/USB Modem Router

YML717 Rev1

32

www.netcomm.com.au

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Netcom NB5 manual Firewall

NB5 specifications

The Netcom NB5 is a highly regarded broadband modem and router that has gained popularity for its robust features and reliable performance. Designed to cater to a variety of networking needs, the NB5 is particularly well-suited for home and small office environments.

One of the standout features of the Netcom NB5 is its ADSL2+ technology, which enhances internet speeds significantly compared to traditional ADSL modems. This technology allows users to achieve download speeds of up to 24 Mbps and upload speeds of up to 1 Mbps, depending on the distance from the service provider’s exchange. This capability makes the NB5 an excellent choice for video streaming, online gaming, and other bandwidth-intensive applications.

The NB5 also integrates a built-in router, facilitating easy sharing of the internet connection among multiple devices. It supports both wired and wireless connections, with an 802.11g wireless standard that ensures a stable and fast wireless connection over a considerable range. With four Ethernet ports, users can connect wired devices such as computers and gaming consoles directly, ensuring optimal performance without the limitations typically associated with wireless connections.

Security is a top priority for the Netcom NB5, which features advanced firewall capabilities including Network Address Translation (NAT) and Stateful Packet Inspection (SPI). These features help protect the network from various external threats. Additionally, the NB5 supports Wi-Fi Protected Access (WPA/WPA2) encryption to safeguard wireless connections from unauthorized access, ensuring users’ personal data remains secure while browsing the internet.

Another characteristic that enhances the user experience is the NB5’s easy setup and web-based management interface. This intuitive interface allows users to configure their settings effortlessly, monitor network activity, and customize security protocols without requiring extensive technical knowledge.

The Netcom NB5 is also noteworthy for its compatibility with various operating systems, including Windows, macOS, and Linux, making it versatile for different user environments. Overall, the design, advanced technology, and feature set of the Netcom NB5 make it a reliable option for users seeking a high-performance internet solution. With its ability to deliver fast and secure internet connections, the NB5 continues to be a popular choice among consumers and small businesses alike.