Cisco Systems 4033836, DPC3925, EPC3925, 4031761, 4031762 Configure Security, Security Firewall

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Configure Security

Configure Security

Security > Firewall

Advanced firewall technology deters hackers and protects the home network from unauthorized access. Use this page to configure a firewall that can filter out various types of unwanted traffic on the gateway’s local network.

Select the Firewall tab to open the Security Firewall page.

Use the descriptions and instructions in the following table to configure the firewall for your residential gateway. After you make your selections, click Save Settings to apply your changes or Cancel Changes to cancel.

Section

Field Description

Firewall

SPI Firewall Protection

 

SPI Firewall Protection blocks Denial of Service (DoS) attacks. A DoS attack does not

 

attempt to steal data or damage your computers, but it overloads your Internet

 

connection so you cannot use it.

 

Select the desired option:

Enable (factory default)

Disable

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4021192 Rev B

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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 ItTelephone Equipment Notice Declaration of Conformity Canada EMI RegulationDynamic Frequency Selection DFS Dual Band Frequencies Radiation Exposure Statements CanadaAustralia CE Compliance National Restrictions France Italy LatviaAntennas Benefits and Features IntroductionIntroduction Whats In the Carton? Front Panel Description Back Panel Description Back Panel Description Minimum System Requirements for Macintosh What Are the System Requirements for Internet Service?Minimum System Requirements for a PC System Requirements for an Ethernet ConnectionDo Not Have a High-Speed Internet Access Account Already Have an Existing High-Speed Internet Access Account Want to Use the Application Server for Telephone ServiceRev B 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 Number of Telephone Devices What Are the Requirements for Telephone Service?Telephone Wiring Requirements Telephone Device TypesConnecting and Installing Internet Devices To connect devicesRev B Rev B 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 Setup Lan Setup Configuring Your Network SettingsLAN  Pre-assigned Dhcp IP Addresses Dhcp Connected Devices Summary Starting IP AddressClient Lease Time Setup DdnsSection Field Description Maximum Number of Dhcp Users LAN Static DNS Domain Name ServerDisabling Ddns Factory Default Settings DdnsConfigure Wireless Settings Wireless Basic SettingsWi-Fi Protected Setup WPS Section Field Description Basic Settings Wi-Fi Protected Setup ConfigurationWPS Push Button Setup Option WPS Setup Using the Gateway PIN Option Network Mode Section Field Description Basic Settings Wireless NetworkWireless Configuration Only, B/G Mixed, B/G/N Mixed factory defaultBssid Wireless Wireless SecuritySection Field Description Wireless Network Name Ssid Broadcast SsidWEP Wireless Security Page DescriptionSection Field Description Wireless Wireless Security Mode Field DescriptionsWPA Security for Personal Networks WPA or WPA2 Personal ModesConfigure Wireless Settings Wireless MAC Filter Wireless MAC Filter Page DescriptionWireless Advanced Settings Section Field Description Access Access RestrictionMAC Address Filter List Wireless Advanced Settings Page Description CTS Protection Mode Beacon IntervalSection Field Description Dtim Interval Fragmentation ThresholdRTS Threshold Wireless WDS Settings Wireless WDS Settings Page DescriptionWDS Wireless QoS Wireless QoS Page DescriptionDisable Enable Section Field Description No ACKConfigure Security Security FirewallSection Field Description Firewall SPI Firewall Protection Block Pop-Up Windows Block IP Flood Detection checked factory defaultSection Field Description Filters Filter Proxy Block Web Page CookiesVPN Disable Pptp PassthroughSecurity VPN Passthrough IPSec PassthroughSecurity VPN Security VPN Tunnel Page Description Section Field Description Remote FqdnKey Management Key Exchange Method Section Field Description Key Auto IKEManual Section Field Description Status Advanced SettingsPhase 1 Operation Mode Connected or DisconnectedView Log Control Access to the Gateway Access Restrictions IP Address FilteringAccess Restrictions MAC Address Filtering Function Keys Access Restrictions Basic Rules Remove Rule Parental Control check box and click ApplyAdd Rule Keyword ListRe-Enter Password Block Access to WebsitesSection Field Description Override the 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 TimeApplications & Gaming Port Filtering Configure Applications and GamingOverview Applications and Gaming Port Filtering Page DescriptionApplications & Gaming Port Range Forwarding TCPUDP End Applications and Gaming Port Range Forward Page DescriptionSection Field Description Port Range Forwarding Start IP AddressApplications & Gaming Port Range Triggering Forwarded Range Start PortApplications & Gaming DMZ Section Field Description End PortDMZ Hosting Applications and Gaming DMZ Page DescriptionDMZ Select the desired optionAdministration Management Administration Management Page DescriptionManage the Gateway WAN MTU UPnP Field Description Remote Access Remote ManagementManagement Port IgmpSmtp Mail Server Administration ReportingSection Field Description Reporting Mail Alerts Mail Address for Alert LogsView Log Administration Diagnostics Administration Backup & Restore Administration Factory Defaults Restore Factory DefaultsMAC Address CM MAC Address Monitor Gateway StatusStatus Gateway Current TimeDNS1-3 Status Local NetworkSection Field Description Internet Connection IP Address WinsEnd IP Address Status Wireless Wide Channel Status Wireless Page DescriptionNetwork Name Ssid SecurityStatus Docsis WAN Docsis WAN Page DescriptionMonitor Gateway Status Frequently Asked Questions How Do I Configure TCP/IP Protocol?How Do I Renew the IP Address on My PC? How do I arrange for installation? Renewing the IP Address on Windows NT, 2000, or XP SystemsWhat if I dont subscribe to cable TV? How does the residential gateway connect to my computer? Common Troubleshooting IssuesDont understand the front panel status indicators Can I watch TV and surf the Internet at the same time?Tips for Improved Performance Check and CorrectFront Panel LED Status Indicator Functions Step100 Rev B Normal Operations AC Power applied Front Panel LED Status Indicators During Normal ConditionsFront Panel LED Status Indicators During Special Conditions Special ConditionsCopyright TrademarksPublication Disclaimer Software and Firmware Use104 Rev B For Information If You Have Questions
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4031761, 4033836, DPC3925, 4031762, EPC3925 specifications

Cisco Systems is a leading global technology company known for its networking hardware, software, and telecommunication equipment. Among its expansive product line, the DPQ2160 DOCSIS 2.0 modem series and the EPC3925 are significant models utilized in various internet service delivery scenarios.

The DPQ2160 is a DOCSIS 2.0 compliant modem that offers an efficient solution for cable internet services. It features an advanced design to enhance data transfer rates and is compatible with both downstream and upstream channels. With a maximum downstream data rate of 38 Mbps, this modem supports high-speed internet access ideal for home and small business environments. It also ensures reliable connectivity through its robust channel bonding capabilities, which allow multiple data streams. Additionally, the DPQ2160 integrates a user-friendly web interface for easy management and configuration, making it simple for users to troubleshoot and monitor their connection.

Cisco’s EPC3925 is a versatile gateway that satisfies both broadband connectivity and Wi-Fi needs. It combines DOCSIS 3.0 capabilities, enabling high-definition video streaming, online gaming, and other bandwidth-intensive applications. The EPC3925 supports various wireless standards, including 802.11n, providing a strong and reliable Wi-Fi connection throughout homes or offices. Its dual-band feature ensures users can connect multiple devices while minimizing interference. Furthermore, the EPC3925 offers advanced security features, including built-in firewall capabilities and support for Wi-Fi Protected Access (WPA) encryption, which safeguards users' networks.

Both the DPQ2160 and EPC3925 incorporate technologies aimed at improving user experience. They are designed for easy setup, often featuring plug-and-play capabilities that allow for rapid installation without the need for extensive configuration knowledge. Cisco’s emphasis on quality and reliability ensures that these devices consistently provide the performance required in today’s data-driven world.

The models also demonstrate strong backward compatibility with earlier DOCSIS versions, ensuring that users can maintain their internet service even if they have older infrastructure. This versatility is vital for service providers, allowing them to deploy these devices in various scenarios with minimum disruption.

Overall, Cisco's DPQ2160 and EPC3925 modems reflect the company’s commitment to driving connectivity and communication innovations, providing users with essential tools for navigating an increasingly online world. With advanced features and robust performance, these devices exemplify Cisco's dedication to ensuring seamless and secure internet access.