Chapter 3: Networking

•IP Stack 1 - for use by the cable company to communicate with the cable modem section

only. This stack receives its IP address from the cable company during CM initialization. It

uses the MAC address printed on the label attached to the Wireless Cable gateway.

•IP Stack 2 - for use by you, the end user, to communicate with the cable modem and

Networking sections, to access the internal web page diagnostics and con guration. This

stack uses a fixed IP address: 192.168.100.1. It uses a MAC address of MAC label + 1 (the

MAC label is found on the bottom of the unit). E.g., if the MAC address is

00:90:64:12:B1:91, this MAC address would be 00:90:64:12:B1:92.

With CM Mode, your cable company must provide one IP address for the CM section, plus one

for each PC you connect from their pool of available addresses. Your cable company may have

you or your installer manually enter these assigned addresses into your PC, or use a DHCP

Server to communicate them to your PCs, or use a method that involves you entering host

names into your PCs.

Note that in CM Mode, packets passing to the Internet to/from your PCs do not travel through

any of the IP stacks; instead they are directly bridged between the WAN and LAN sides.

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Illustrations contained in this document are for representation only.

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Gateway TWG870 user manual Networking
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TWG870 specifications

The Gateway TWG870 is a versatile and robust residential gateway device designed to provide seamless internet connectivity and multifunctional capabilities for home networking. One of its standout features is its integrated DSL modem, which supports ADSL and ADSL2+ standards, ensuring reliable high-speed internet access. With download speeds reaching up to 24 Mbps, users can enjoy smooth streaming, gaming, and web browsing experiences.

Equipped with a built-in 4-port Ethernet switch, the TWG870 allows multiple wired devices to connect directly, enhancing network stability and performance. In addition to the wired connections, the gateway also features integrated Wi-Fi technology, specifically IEEE 802.11n, which offers better coverage and faster speeds compared to previous wireless standards. This enables users to connect their laptops, smartphones, tablets, and smart home devices wirelessly, creating a comprehensive home network without the clutter of cables.

Another significant characteristic of the Gateway TWG870 is its advanced security features. The device supports WPA/WPA2 encryption protocols, which safeguard users' networks from unauthorized access and ensure data privacy. Furthermore, with a built-in firewall, it adds an extra layer of protection against external threats, making it a reliable choice for families and individuals concerned about online safety.

The TWG870 also supports advanced Quality of Service (QoS) features, allowing users to prioritize bandwidth allocation for critical applications such as video conferencing or online gaming. This ensures a lag-free experience even when multiple devices are connected to the network simultaneously.

In terms of physical design, the Gateway TWG870 is compact and features a sleek appearance, making it suitable for placement in various home environments. Its user-friendly interface facilitates easy setup and configuration, enabling users to customize their network settings according to personal preferences.

Additionally, the device is compatible with various operating systems, ensuring broad compatibility across different platforms. With all these features combined, the Gateway TWG870 stands out as a reliable and efficient solution for home networking needs, providing users with the performance and flexibility required in today's connected world.
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