Cisco Systems 4034441 Section Field Description Filters Filter Proxy, Block Pop-Up Windows

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Configure Security

 

 

Section

Field Description

 

Filters

Filter Proxy

 

 

Enables/disables filter proxy. If local users have access to WAN proxy servers, they

 

 

may be able to circumvent the content filters and access Internet sites blocked by

 

 

the device. If you select the Filter Proxy feature, it will block access to any WAN

 

 

proxy servers.

Block Pop-Up Windows

Enables/disables popup windows. Some commonly used applications employ popup windows as part of the application. If you disable popup windows, it may interfere with some of these applications.

Block Web Page Cookies

Enables/disables cookie blocking. This feature filters the unsolicited delivery of cookies to devices from the Internet to devices in your private local network. Cookies are computer files that contain personal information or web surfing behavior data.

 

 

Block Java and ActiveX Scripts

 

 

Enables/disables java applets and ActiveX scripts. This feature helps to protect the

 

 

devices in your private network from irritating or malicious Java applets that are

 

 

sent, unsolicited, to devices in your private network from the Internet. These

 

 

applets run automatically when they are received by a PC.

 

 

Java is a programming language for websites. If you select the Filter Java Applets

 

 

feature, you may not have access to Internet sites created using this programming

 

 

language.

 

 

This feature also helps to protect the devices in your private network from irritating

 

 

or malicious ActiveX controls that are sent, unsolicited, to devices in your private

 

 

network from the Internet. These ActiveX controls run automatically when they are

 

 

received by a PC.

 

 

Block fragmented IP packets

 

 

Enables/disables filtering of fragmented IP packets. This feature helps protect your

 

 

private local network from Internet based denial of service attacks.

 

 

Block Port Scan Detection

 

 

Enables/disables the gateway from responding to Internet based port scans. This

 

 

feature is designed to protect your private local network from Internet based

 

 

hackers who attempt to gain unsolicited access your network by detecting open IP

 

 

ports on your gateway.

 

 

Block IP Flood Detection (checked factory default)

 

 

Blocks malicious devices that are attempting to flood devices or networks with

 

 

illegal broadcast packets. Also referred to as ―broadcast storm.‖

 

 

 

 

Block WAN

Block Anonymous Internet Requests (checked factory default)

 

Requests

Enable this feature to keep your network from being "pinged" or detected by other

 

 

 

 

Internet users. The Block Anonymous Internet Requests feature also hides your

 

 

network ports. Both make it more difficult for outside users to enter your network.

 

 

 

52

 

4021196 Rev C

Image 52
Contents Important Safety Instructions This DocumentImportant Safety Instructions Mitteilung für CATV-Techniker Aviso a los instaladores de sistemas CatvPower Source Warning Ground the ProductVerify the Power Source from the On/Off Power Light Protect the Product from LightningCheck Product Safety Protect the Product When Moving ItDeclaration of Conformity United States FCC ComplianceCanada EMI Regulation Dynamic Frequency Selection DFS Dual Band Frequencies Radiation Exposure StatementsCanada AustraliaCE Compliance National Restrictions France ItalyAntennas LatviaBenefits and Features IntroductionIntroduction Whats In the Carton? Front Panel Description Back Panel Description Back Panel Description What Are the System Requirements for Internet Service? Minimum System Requirements for a PCMinimum System Requirements for Macintosh System Requirements for an Ethernet ConnectionDo Not Have a High-Speed Internet Access Account How Do I Subscribe to High-Speed Internet Service?Already Have an Existing High-Speed Internet Access Account Rev C How Do I Mount the Modem on a Wall? Optional Before You BeginLocation and Dimensions of the Wall-Mounting Slots Mounting the Residential Gateway on a Wall Connecting and Installing Internet Devices How Do I Connect My Gateway for Internet Service?To connect devices How Do I Connect My Gateway for Internet Service? How Do I Configure My Docsis Residential Gateway? Logging in to the Gateway for the First TimeHow Do I Configure My Docsis Residential Gateway? Setup Quick Setup Configuring Quick Settings Wlan Configuring Your Network Settings Setup Lan SetupLAN Dhcp  Connected Devices Summary Pre-assigned Dhcp IP Addresses Starting IP AddressSetup Ddns Disabling Ddns Factory Default Settings DdnsWireless Basic Settings Configure Wireless SettingsWi-Fi Protected Setup WPS Wi-Fi Protected Setup Configuration Section Field Description Basic SettingsWPS Push Button Setup Option WPS Setup Using the Gateway PIN Option Section Field Description Basic Settings Wireless Network Wireless ConfigurationNetwork Mode Only, B/G Mixed, B/G/N Mixed factory defaultWireless Wireless Security Section Field Description Wireless Network Name SsidBssid Broadcast SsidWireless Security Page Description Section Field Description Wireless Wireless Security ModeWEP Field DescriptionsWPA Security for Personal Networks WPA or WPA2 Personal ModesWPA-Personal WPA2-PersonalConfigure Wireless Settings Wireless MAC Filter Wireless MAC Filter Page DescriptionSection Field Description Access Access Restriction Wireless Advanced SettingsMAC Address Filter List Wireless Advanced Settings Page Description CTS Protection Mode Beacon IntervalFragmentation Threshold Section Field Description Dtim IntervalRTS Threshold Wireless WDS Settings Page Description Wireless WDS SettingsWDS Wireless QoS Page Description Wireless QoSDisable Enable Section Field Description No ACKSecurity Firewall Configure SecuritySection Field Description Firewall SPI Firewall Protection Block IP Flood Detection checked factory default Section Field Description Filters Filter ProxyBlock Pop-Up Windows Block Web Page CookiesDisable Pptp Passthrough Security VPN PassthroughVPN IPSec PassthroughSecurity VPN Security VPN Tunnel Page Description Fqdn Section Field Description RemoteKey Management Key Exchange Method Auto IKE Section Field Description KeyManual Advanced Settings Phase 1 Operation ModeSection Field Description Status Connected or DisconnectedView Log Access Restrictions IP Address Filtering Control Access to the GatewayAccess Restrictions MAC Address Filtering Function Keys Access Restrictions Basic Rules Parental Control check box and click Apply Add RuleRemove Rule Keyword ListBlock Access to Websites Section Field Description Override the PasswordRe-Enter Password Access DurationAccess Restrictions Time of Day Rules Access Restrictions Time of Day Rules Page DescriptionAccess Restrictions User Setup Access Restrictions User Setup Page Description Access Restrictions Local Log Section Field Description Inactivity TimeConfigure Applications and Gaming OverviewApplications & Gaming Port Filtering Applications and Gaming Port Filtering Page Description UDP  Both Enable Applications & Gaming Port Range ForwardingSection Field Description Port Filtering Start Port End PortApplications and Gaming Port Range Forward Page Description Section Field Description Port Range Forwarding StartEnd IP AddressApplications & Gaming Port Range Triggering Forwarded Range Start PortApplications & Gaming DMZ Section Field Description End PortApplications and Gaming DMZ Page Description DMZDMZ Hosting Select the desired optionAdministration Management Page Description Administration ManagementManage the Gateway WAN MTU Field Description Remote Access Remote Management Management PortUPnP IgmpAdministration Reporting Section Field Description Reporting Mail AlertsSmtp Mail Server Mail Address for Alert LogsView Log Administration Diagnostics Administration Backup & Restore Administration Factory Defaults Restore Factory DefaultsMonitor Gateway Status Status GatewayMAC Address CM MAC Address Current TimeStatus Local Network Section Field Description Internet Connection IP AddressDNS1-3 WinsSection Field Description IP Address End IP AddressStatus Wireless Status Wireless Page Description Network Name SsidWide Channel SecurityStatus Docsis WAN Docsis WAN Page DescriptionBootloader Revision Displays the boot revision code versionSection Field Description MAC Address CM MAC Address Current Software RevisionFrequently Asked Questions How Do I Configure TCP/IP Protocol?How Do I Renew the IP Address on My PC? Renewing the IP Address on Windows NT, 2000, or XP Systems How do I arrange for installation?What if I dont subscribe to cable TV? Common Troubleshooting Issues Dont understand the front panel status indicatorsHow does the residential gateway connect to my computer? Can I watch TV and surf the Internet at the same time?Tips for Improved Performance Check and CorrectFront Panel LED Status Indicator Functions StepFront Panel Indicator Data Network Registration Complete Normal Operations AC Power applied Front Panel LED Status Indicators During Normal ConditionsFront Panel LED Status Indicators During Special Conditions Special ConditionsPublication Disclaimer TrademarksCopyright Software and Firmware Use For Information If You Have QuestionsRev C 103
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4034441 specifications

Cisco Systems has long been a pioneer in networking technologies, and the DPC3825, EPC3825 models are prime examples of its commitment to providing reliable and advanced solutions for consumers and businesses alike. These models are equipped with features that cater to a variety of networking needs, making them ideal for both residential and small business environments.

At the heart of the Cisco DPC3825 and EPC3825 is a powerful DOCSIS 3.0 cable modem that supports multiple downstream and upstream channels, allowing for high-speed internet connectivity. This capability enhances the overall bandwidth management, enabling multiple users to enjoy seamless internet access. With download speeds of up to 600 Mbps and upload speeds reaching 120 Mbps, these devices ensure that high-definition streaming, online gaming, and video conferencing can occur without interruptions.

One key feature of these models is their integrated Wi-Fi capabilities. Utilizing dual-band wireless technology, the DPC3825 and EPC3825 can operate on both 2.4GHz and 5GHz bands, providing greater flexibility and reduced interference. This setup allows users to connect a range of devices, from smartphones and tablets to smart home equipment, without compromising on performance.

Security is a priority in today’s online landscape, and Cisco has incorporated advanced security measures into these models. They come equipped with robust firewalls, encryption protocols, and support for various authentication methods, ensuring that users’ data remains safe from unauthorized access. Moreover, the user-friendly web interface allows for easy network management and configuration, enabling users to customize their settings according to their specific needs.

The DPC3825 and EPC3825 are also designed with energy efficiency in mind. The devices consume minimal power while still delivering robust performance, contributing to lower electricity bills and a reduced environmental footprint. Their compact design allows for easy placement in any home or office environment, making them unobtrusive yet effective.

Furthermore, these models offer features like Quality of Service (QoS), which prioritizes bandwidth for high-priority applications such as video streaming and VoIP calls. This ensures that all activities on the network operate smoothly, even during peak usage times.

In summary, Cisco's DPC3825 and EPC3825 cable modems exemplify high performance, security, and energy efficiency. With their advanced features and technologies, they cater to the evolving needs of users, making them a preferred choice for reliable internet connectivity in homes and small businesses.