12    4021196 Rev C 
 
Introduction 
Welcome to the exciting world of high-speed Internet  service. Your new Cisco
®
 
Model DPC3825 DOCSIS
®
 3.0 or EPC3825 EuroDOCSIS™ Wireless Residential 
Gateway is a cable modem that meets industry standards for high-speed data 
connectivity. The DPC3825 and EPC3825 residential gateway delivers data and 
wired (Ethernet) or wireless gateway capabilities to connect a variety of devices in 
the home or small office and support high-speed data access, all in one device. With 
a DPC3825 or EPC3825 residential gateway, your Internet enjoyment, home and 
business communications, and personal productivity will surely soar. 
This guide provides procedures and recommendations for placing, installing, 
configuring, operating, and troubleshooting your DPC3825 and EPC3825 residential 
gateway for high-speed Internet for your home or office. Refer to the appropriate 
section in this guide for the specific information you need for your situation. Contact 
your service provider for more information about subscribing to these services. 
Benefits and Features 
Your new DPC3825 and EPC3825 residential gateway offers the following 
outstanding benefits and features: 
  Compliant with DOCSIS 3.0, 2.0, and 1.x standards along with PacketCable™ 
and EuroPacketCable™ specifications to deliver high-end performance and 
reliability 
  High performance broadband Internet connectivity to energize your online 
experience 
  Four 1000/100/10BASE-T Ethernet ports to provide wired connectivity 
  802.11n Wireless Access Point 
  Wireless Protected Setup (WPS), including a push button switch to activate WPS 
for simplified and secure wireless setup 
  User configurable Parental Control blocks access to undesirable Internet sites 
  Advanced firewall technology deters hackers and protects the home network 
from unauthorized access 
  Attractive compact design that allows for vertical, horizontal, or wall-mounted 
operation