Cisco Systems 4034441 Security VPN Passthrough, Vpn, IPSec Passthrough, Disable Pptp Passthrough

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Configure Security

Security > VPN Passthrough

Use this page to configure Virtual Private Network (VPN) support. Enabling the settings on this page allows VPN tunnels using IPsec or PPTP protocols to pass through the gateway's firewall. Select the VPN Passthrough tab to open the Security VPN Passthrough page.

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

Section

Field Description

VPN

IPSec Passthrough

Passthrough

Enables/disables Internet Protocol Security (IPsec). IPsec is a suite of

 

 

protocols used to implement secure exchange of packets at the IP layer. If

 

you enable IPSec Passthrough, applications that use IPsec (IP Security) can

 

pass through the firewall. To disable IPSec Passthrough select Disable.

 

Select the desired option:

Enable (factory default)

Disable

PPTP Passthrough

Enables/disables Point-to-Point Tunneling Protocol (PPTP). PPTP allows the Point-to-Point Protocol (PPP) to be tunneled through an IP network. If you enable PPTP passthrough, applications that use Point to Point Tunneling Protocol (PPTP) can pass through the firewall To disable PPTP Passthrough select Disable.

Select the desired option:

Enable (factory default)

Disable

4021196 Rev C

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Contents This Document Important Safety InstructionsImportant Safety Instructions Aviso a los instaladores de sistemas Catv Mitteilung für CATV-TechnikerGround the Product Power Source WarningProtect the Product from Lightning Verify the Power Source from the On/Off Power LightProtect the Product When Moving It Check Product SafetyCanada EMI Regulation United States FCC ComplianceDeclaration of Conformity Radiation Exposure Statements Dynamic Frequency Selection DFS Dual Band FrequenciesCanada AustraliaCE Compliance France Italy National RestrictionsLatvia AntennasIntroduction Benefits and FeaturesIntroduction Whats In the Carton? Front Panel Description Back Panel Description Back Panel Description Minimum System Requirements for a PC What Are the System Requirements for Internet Service?Minimum System Requirements for Macintosh System Requirements for an Ethernet ConnectionAlready Have an Existing High-Speed Internet Access Account How Do I Subscribe to High-Speed Internet Service?Do Not Have a High-Speed Internet Access Account Rev C Before You Begin How Do I Mount the Modem on a Wall? OptionalLocation and Dimensions of the Wall-Mounting Slots Mounting the Residential Gateway on a Wall To connect devices How Do I Connect My Gateway for Internet Service?Connecting and Installing Internet Devices How Do I Connect My Gateway for Internet Service? Logging in to the Gateway for the First Time How Do I Configure My Docsis Residential Gateway?How Do I Configure My Docsis Residential Gateway? Setup Quick Setup Configuring Quick Settings Wlan LAN Setup Lan SetupConfiguring Your Network Settings  Connected Devices Summary Dhcp Pre-assigned Dhcp IP Addresses Starting IP AddressSetup Ddns Ddns Disabling Ddns Factory Default SettingsWi-Fi Protected Setup WPS Configure Wireless SettingsWireless Basic Settings WPS Push Button Setup Option Section Field Description Basic SettingsWi-Fi Protected Setup Configuration WPS Setup Using the Gateway PIN Option Wireless Configuration Section Field Description Basic Settings Wireless NetworkNetwork Mode Only, B/G Mixed, B/G/N Mixed factory defaultSection Field Description Wireless Network Name Ssid Wireless Wireless SecurityBssid Broadcast SsidSection Field Description Wireless Wireless Security Mode Wireless Security Page DescriptionWEP Field DescriptionsSecurity for Personal Networks WPA or WPA2 Personal Modes WPAWPA-Personal WPA2-PersonalConfigure Wireless Settings Wireless MAC Filter Page Description Wireless MAC FilterMAC Address Filter List Wireless Advanced SettingsSection Field Description Access Access Restriction Wireless Advanced Settings Page Description Beacon Interval CTS Protection ModeRTS Threshold Section Field Description Dtim IntervalFragmentation Threshold WDS Wireless WDS SettingsWireless WDS Settings Page Description Disable Wireless QoSWireless QoS Page Description Section Field Description No ACK EnableSection Field Description Firewall SPI Firewall Protection Configure SecuritySecurity Firewall Section Field Description Filters Filter Proxy Block IP Flood Detection checked factory defaultBlock Pop-Up Windows Block Web Page CookiesSecurity VPN Passthrough Disable Pptp PassthroughVPN IPSec PassthroughSecurity VPN Security VPN Tunnel Page Description Key Management Key Exchange Method Section Field Description RemoteFqdn Manual Section Field Description KeyAuto IKE Phase 1 Operation Mode Advanced SettingsSection Field Description Status Connected or DisconnectedView Log Access Restrictions MAC Address Filtering Control Access to the GatewayAccess Restrictions IP Address Filtering Function Keys Access Restrictions Basic Rules Add Rule Parental Control check box and click ApplyRemove Rule Keyword ListSection Field Description Override the Password Block Access to WebsitesRe-Enter Password Access DurationAccess Restrictions Time of Day Rules Page Description Access Restrictions Time of Day RulesAccess Restrictions User Setup Access Restrictions User Setup Page Description Section Field Description Inactivity Time Access Restrictions Local LogOverview Configure Applications and GamingApplications & Gaming Port Filtering Applications and Gaming Port Filtering Page DescriptionApplications & Gaming Port Range Forwarding  UDP  Both EnableSection Field Description Port Filtering Start Port End PortSection Field Description Port Range Forwarding Start Applications and Gaming Port Range Forward Page DescriptionEnd IP AddressForwarded Range Start Port Applications & Gaming Port Range TriggeringSection Field Description End Port Applications & Gaming DMZDMZ Applications and Gaming DMZ Page DescriptionDMZ Hosting Select the desired optionManage the Gateway Administration ManagementAdministration Management Page Description WAN MTU Management Port Field Description Remote Access Remote ManagementUPnP IgmpSection Field Description Reporting Mail Alerts Administration ReportingSmtp Mail Server Mail Address for Alert LogsView Log Administration Diagnostics Administration Backup & Restore Restore Factory Defaults Administration Factory DefaultsStatus Gateway Monitor Gateway StatusMAC Address CM MAC Address Current TimeSection Field Description Internet Connection IP Address Status Local NetworkDNS1-3 WinsEnd IP Address Section Field Description IP AddressStatus Wireless Network Name Ssid Status Wireless Page DescriptionWide Channel SecurityDocsis WAN Page Description Status Docsis WANDisplays the boot revision code version Bootloader RevisionSection Field Description MAC Address CM MAC Address Current Software RevisionHow Do I Configure TCP/IP Protocol? Frequently Asked QuestionsHow Do I Renew the IP Address on My PC? What if I dont subscribe to cable TV? How do I arrange for installation?Renewing the IP Address on Windows NT, 2000, or XP Systems Dont understand the front panel status indicators Common Troubleshooting IssuesHow does the residential gateway connect to my computer? Can I watch TV and surf the Internet at the same time?Check and Correct Tips for Improved PerformanceStep Front Panel LED Status Indicator FunctionsFront Panel Indicator Data Network Registration Complete Front Panel LED Status Indicators During Normal Conditions Normal Operations AC Power appliedSpecial Conditions Front Panel LED Status Indicators During Special ConditionsCopyright TrademarksPublication Disclaimer Software and Firmware Use If You Have Questions For InformationRev 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.