D-Link DSL-321B User Manual page 5

Section 1 - Product Overview
Introduction
HIGH-SPEED ADSL2/2+ INTERNET CONNECTION
Latest ADSL2/2+ standards provide Internet transmission of up to 24Mbps downstream, 1Mbps upstream.
TOTAL SECURITY
Firewall protection from Internet attacks, user access control.
ULTIMATE INTERNET CONNECTION
The DSL-321B ADSL2+ router is a versatile, high-performance remote router for home and the small office. With integrated ADSL2/2+ supporting up to 24Mbps
download speed, firewall protection, Quality of Service (QoS), this router provides all the functions that a home or small office needs to establish a secure and
high-speed remote link to the outside world.
FIREWALL PROTECTION & QoS
Security features prevents unauthorized access to the home and office network, be it from the LAN devices or from the Internet. The router provides firewall
security using Stateful Packet Inspection (SPI) and hacker attack logging for Denial of Service (DoS) attack protection. SPI inspects the contents of all incoming
packet headers before deciding what packets are allowed to pass through. Router access control is provided with packet filtering based on port and
source/destination IP addresses. For Quality of Service (QoS), the router supports multiple priority queues to enable a group of home or office users to
experience the benefit of smooth network connection of inbound and outbound data without concern of traffic congestion. This QoS support allows users to enjoy
high ADSL transmission for applications such as VoIP and streaming multimedia over the Internet.
D-Link DSL-321B User Manual 5