7-14 Reference Guide

3.Using the tables on page 7-10, find the destination port and protocol numbers (the local Telnet port):

Proto = TCP (or 6)

D. Port = 23

4.The filter should be enabled and instructed to block the Telnet packets containing the source address shown in step 2:

On? = Yes

Fwd = No

This four-step process is how we produced the following filter from the original rule:

+-#--

Source IP Addr--

Dest IP Addr-----

Proto-Src.Port-D.Port--

On?-Fwd

+--------------------------------------------------------------------

 

 

 

+

1

199.211.211.17

0.0.0.0

TCP

23

Yes No

Filtering example #2

Suppose a filter is configured to block all incoming IP packets with the source IP address of 200.233.14.0, regardless of the type of connection or its destination. The filter would look like this:

+-#--

Source IP Addr--

Dest IP Addr-----

Proto-Src.Port-D.Port

--On?-Fwd

+--------------------------------------------------------------------

 

 

+

1

200.233.14.0

0.0.0.0

0

Yes No

This filter blocks any packets coming from a remote network with the IP network address 200.233.14.0. The 0 at the end of the address signifies any host on the class C IP network 200.233.14.0. If, for example, the filter is applied to a packet with the source IP address 200.233.14.5, it will block it.

In this case, the mask, which does not appear in the table, must be set to 255.255.255.0. This way, all packets with a source address of 200.233.14.x will be matched correctly, no matter what the final address byte is.

Note: The protocol attribute for this filter is 0 by default. This tells the filter to ignore the IP protocol or type of IP packet.

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Netopia PN Series manual Reference Guide, Filtering example #2

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.