N150 Wireless ADSL2+ Modem Router DGN1000v3

Your modem router then sends this request message through the Internet to the web server at www.example.com.

4.The web server at www.example.com composes a return message with the requested web page data. The return message contains the following address and port information. The web server then sends this reply message to your modem router:

•Source address. The IP address of www.example.com

•Source port number. 80, which is the standard port number for a web server process

•Destination address. The public IP address of your modem router

•Destination port number. 33333

5.Upon receiving the incoming message, your modem router checks its session table to determine whether there is an active session for port number 33333. Finding an active session, the modem router then modifies the message to restore the original address information replaced by NAT. Your modem router sends this reply message to your computer, which displays the web page from www.example.com. The message now contains the following address and port information:

•Source address. The IP address of www.example.com

•Source port number. 80, which is the standard port number for a web server process

•Destination address. Your computer’s IP address

•Destination port number. 5678, which is the browser session that made the initial request

6.When you finish your browser session, your modem router eventually detects a period of inactivity in the communications. Your modem router then removes the session information from its session table, and incoming traffic is no longer accepted on port number 33333.

Port Triggering to Open Incoming Ports

Some application servers (such as FTP and IRC servers) send replies to multiple port numbers. Using the port triggering function of your modem router, you can tell the modem router to open more incoming ports when a particular outgoing port originates a session.

An example is Internet Relay Chat (IRC). Your computer connects to an IRC server at destination port 6667. The IRC server not only responds to your originating source port, but also sends an “identify” message to your computer on port 113. Using port triggering, you can tell the modem router, “When you initiate a session with destination port 6667, you need to also allow incoming traffic on port 113 to reach the originating computer.” Using steps similar to the preceding example, the following sequence shows the effects of the port triggering rule you have defined:

1.You open an IRC client program to start a chat session on your computer.

2.Your IRC client composes a request message to an IRC server using a destination port number of 6667, the standard port number for an IRC server process. Your computer then sends this request message to your modem router.

3.Your modem router creates an entry in its internal session table describing this communication session between your computer and the IRC server. Your modem router

Advanced Settings

102

Page 101 Page 103
Page 102
Image 102
NETGEAR DGN1000v3 user manual Port Triggering to Open Incoming Ports, Destination port number
Page 101 Page 103

DGN1000v3 specifications

The NETGEAR N150, designated as DGN1000v3, is a versatile and efficient DSL modem router that caters to the needs of both casual users and small office setups. With its compact design and a host of features, the DGN1000v3 provides reliable connectivity and performance for everyday internet tasks such as browsing, streaming, and online gaming.

One of the standout features of the NETGEAR N150 is its maximum wireless speed of 150 Mbps, which is suitable for typical home internet usage. This speed allows multiple devices to connect simultaneously without significant lag, making it ideal for families or small teams where multiple devices, such as laptops, smartphones, and tablets, are in use. The DGN1000v3 also boasts a range of up to 150 feet indoors, ensuring that users can enjoy a stable connection throughout their home or small office.

The DGN1000v3 is equipped with ADSL2+ support, which enhances the overall speed and stability of DSL connections. This technology enables users to take advantage of higher internet speeds offered by their ISP, significantly improving the browsing and download experience. Furthermore, the built-in firewall helps protect the network from unauthorized access and threats, ensuring a secure online environment.

In terms of connectivity, the NETGEAR N150 features four Ethernet ports, allowing users to connect wired devices such as desktop computers or gaming consoles directly to the router for optimal performance. The presence of these ports complements the wireless capabilities and provides flexibility for different networking needs.

Installation and setup are made easy with the Smart Wizard installation assistant, enabling users to get their network up and running without the need for technical expertise. This is ideal for individuals who may not be comfortable with more complex configurations. Additionally, the N150 offers parental controls, allowing users to manage their children’s online activities and schedule internet access time.

Overall, the NETGEAR N150 DGN1000v3 modem router combines essential features and technologies geared toward enhancing internet connectivity and security. With its fast speeds, robust wireless performance, and user-friendly setup, it is an excellent choice for users seeking a reliable entry-level modem router for everyday internet tasks.
Top Page Image Contents