Security 7-27

Input filter 3: This filter explicitly passes all WAN-originated ICMP traffic to permit devices on the WAN to ping devices on the LAN. Ping is an Internet service that is useful for diagnostic purposes.

Input filters 4 and 5: These filters pass all TCP and UDP traffic, respectively, when the destination port is greater than 1023. This type of traffic generally does not allow a remote host to connect to the LAN using one of the potentially intrusive Internet services, such as Telnet, FTP, and WWW.

Output filter 1: This filter passes all outgoing traffic to make sure that no outgoing connections from the LAN are blocked.

Basic Firewall is suitable for a LAN containing only client hosts that wish to access servers on the WAN, not for a LAN containing servers providing services to clients on the WAN. Basic Firewall’s general strategy is to explicitly pass WAN-originated TCP and UDP traffic to ports greater than 1023. Ports lower than 1024 are the service origination ports for various Internet services such as FTP, Telnet, and the World Wide Web (WWW).

A more complicated filter set would be required to provide WAN access to a LAN-based server. See “Possible modifications,” below, for ways to allow remote hosts to use services provided by servers on the LAN.

Possible modifications

You can modify the sample filter set Basic Firewall to allow incoming traffic using the examples below. These modifications are not intended to be combined. Each modification is to be the only one used with Basic Firewall.

The results of combining filter set modifications can be difficult to predict. It is recommended that you take special care if making more than one modification to the sample filter set.

Page 168 Page 170
Page 169
Image 169
Netopia PN Series manual Possible modifications
Page 168 Page 170

PN Series specifications

Netopia PN Series is a line of high-performance, user-friendly networking devices designed to meet the demands of modern digital environments. These devices are engineered for seamless connectivity, robust security, and high-speed data transmission, making them an ideal choice for both residential and commercial applications.

One of the standout features of the Netopia PN Series is its support for dual-band Wi-Fi technology. By operating on both 2.4 GHz and 5 GHz frequencies, these devices provide users with enhanced flexibility and connectivity options. The dual-band capability reduces interference and congestion, enabling devices to connect more reliably and providing faster speeds for data-intensive activities like streaming, gaming, and video conferencing.

The PN Series also comes equipped with advanced security protocols to protect users' data and networks. With support for WPA3 encryption and built-in firewalls, the devices ensure a secure connection, safeguarding against unauthorized access and various cyber threats. Additionally, the Netopia PN Series supports guest networks, allowing visitors to connect without compromising the integrity of the primary network.

In terms of technology, the PN Series utilizes advanced mesh networking capabilities, allowing multiple devices to work together to create a unified and expansive Wi-Fi coverage area. This technology significantly reduces dead zones and enhances overall performance, making it an excellent choice for larger homes and commercial spaces where traditional routers may struggle to provide adequate coverage.

Moreover, the Netopia PN Series features intelligent bandwidth management, which allocates network resources efficiently based on user needs and device demands. This dynamic allocation maximizes connectivity performance and enhances the user experience, ensuring smooth operation even under heavy network loads.

The devices come with a user-friendly interface that allows for easy setup and management. Users can quickly configure settings through a mobile app or web portal, making it accessible for individuals with varying levels of technical expertise. Furthermore, the PN Series supports software updates and feature enhancements, ensuring that the devices remain up-to-date with the latest advancements in networking technology.

In conclusion, the Netopia PN Series stands out for its combination of dual-band capabilities, advanced security, mesh networking technologies, and user-friendly management. These characteristics make it an excellent choice for anyone looking to enhance their connectivity experience in today’s digital age. Whether for home use or business solutions, the Netopia PN Series provides reliable and robust networking performance.
Top Page Image Contents