User manual SCIENTIFIC ATLANTA DPC3825 8X4 DOCSIS 3.0

[. . . ] Cisco Model DPC3825 and EPC3825 8x4 DOCSIS 3. 0 Wireless Residential Gateway User Guide In This Document IMPORTANT SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 What's In the Carton?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Front Panel Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Back Panel Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 What Are the System Requirements for Internet Service?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 How Do I Subscribe to High-Speed Internet Service?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Where Is the Best Location for My DOCSIS Residential Gateway?. . . . . . . . . . . . . . . . . . 20 How Do I Mount the Modem on a Wall? [. . . ] 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 Requests Block Anonymous Internet Requests (checked ­ factory default) 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. 4021196 Rev A 52 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 VPN Passthrough Field Description IPSec Passthrough Enables/disables Internet Protocol Security (IPsec). IPsec is a suite of protocols used to implement secure exchange of packets at the IP layer. [. . . ] Verify that your TCP/IP is properly installed and configured if you are using the Ethernet connection. Verify that you have called your service provider and given them the serial number and MAC address of your residential gateway. If you are using a cable signal splitter so that you can connect the residential gateway to other devices, remove the splitter and reconnect the cables so that the residential gateway is connected directly to the cable input. If the residential gateway now functions properly, the cable signal splitter may be defective and may need to be replaced. [. . . ]