Gateway Configuration Screen Definitions

SURFboard® SBG6580 Wireless Cable Modem Gateway

•

User Guide

45

365-095-25397-x.1

DDNS

You can use the Basic DDNS (Dynamic Domain Name System) screen to set up the DDNS service to

assign a static Internet domain name to a dynamic IP address. This allows various servers on the Internet

to access your computer for processing your requests when you are visiting various Internet sites.

Figure 40 – Basic DDNS Screen

Table 9: Basic DDNS Screen-Field Descriptions

Field

Description

DDNS Service

Select

Disabled

or select

wwwDynDNS.org

to enable the DDNS

service

Username

Enter your user name for the Dynamic Domain Name system

Password

Enter your password for the Dynamic Domain Name system

Host Name

Enter the host name for the Dynamic Domain Name system

IP Address

Displays the IP address

Status

Shows if the DDNS service is

Enabled

or

Disabled

Gateway Configuration Screen Definitions

SURFboard® SBG6580 Wireless Cable Modem Gateway

•

User Guide

46

365-095-25397-x.1

Backup and Restore

You can use the Basic Backup and Restore screen to save a backup copy of the current SBG6580

gateway configuration settings locally on your computer or restore previously saved gateway

configurations.

Figure 41 – Basic Backup & Restore Screen

Table 10: Basic Backup & Restore-Field Descriptions

Field

Description

Browse

Allows you to search for a file on your computer to

retrieve or save the gateway configuration.

Restore

Restores a previously saved gateway configuration.

Backup

Creates a back up copy of the current gateway

configuration.

Gateway Configuration Screen Definitions

SURFboard® SBG6580 Wireless Cable Modem Gateway

•

User Guide

47

365-095-25397-x.1

Advanced Screens

Options

You can use the Advanced Options to set the operating modes for adjusting how the SBG6580 routes IP

traffic on your home network.

Figure 42 – Advanced Options Screen

Gateway Configuration Screen Definitions

SURFboard® SBG6580 Wireless Cable Modem Gateway

•

User Guide

48

365-095-25397-x.1

Table 11: Advanced Options-Field Descriptions

Field

Description

WAN Blocking

Prevents the SBG6580 Web Manager or the computers

behind it from being visible to other computers on the

SBG6580 WAN.

IPsec Pass-through

Enables the IPsec Pass-through protocol to be used

through the SBG6580 Web Manager so that a VPN device

(or software) may communicate properly with the WAN.

PPTP Pass-through

Enables the Point-to-Point Tunneling Protocol (PPTP)

Pass-through protocol to be used through the SBG6580

Web Manager so that a VPN device (or software) may

communicate properly with the WAN.

Remote Config

Management

Allows remote access to the SBG6580 Web Manager. This

enables you to configure the SBG6580 WAN by accessing

the WAN IP address at Port 8080 of the SBG6580 Web

Manager from anywhere on the Internet.

For example, in the Internet browser URL window, type

http://WanIPAddress:8080/

to access the SBG6580

Web Manager remotely.

Multicast Enable

Allows multicast-specific traffic (denoted by a multicast

specific address) to be passed to and from the computers

on the home network (LAN) behind the SBG6580 Web

Manager.

UPnP Enable

Turns on the Universal Plug and Play protocol (UPnP) agent

in the SBG6580 Web Manager.

Select this option, if you are running a CPE (client)

application that requires UPnP.

NAT ALG Status

Turn ON or OFF the various Network Address Translation

(NAT) and Application Level Gateway (ALG) status options

on your wireless network

Add MAC Address

Enter the MAC address for the computer you want to block

and click

Add MAC Address

button.

Repeat for up to 20 MAC addresses.

Remove MAC Address

Enter the MAC address filter that you want to delete or

block, then click

Remove MAC Address

button.

Clear All button

Deletes all of your MAC Address filters.

Gateway Configuration Screen Definitions

SURFboard® SBG6580 Wireless Cable Modem Gateway

•

User Guide

49

365-095-25397-x.1

IP Filtering

IP filtering allows you to define which local computers will be denied access to the SBG6580 WAN. You

can configure IP address filters to block Internet traffic to specific network devices on your home

network by entering the starting and ending IP address ranges.

Note

: You only have to enter the LSB (Least-significant byte) of the IP address; the upper bytes of the IP

address are set automatically from the SBG6580 Web Manager’s IP address.

Figure 43 – Advanced IP Filtering Screen

Table 12: Advanced IP Filtering-Field Descriptions

Field

Description

Start Address

Enter the starting IP address range of the computers for which

you want to deny access to the SBG6580 WAN.

Be sure to only enter the least significant byte of the IP address.

End Address

Enter the ending IP address range of the computers you want to

deny access to the SBG6580 WAN.

Be sure to only enter the least significant byte of the IP address.

Enabled

Activates the IP address filter, when selected.

Select

Enabled

for each range of IP addresses you want to deny

access to the SBG6580 WAN.

When done, click

Apply

to activate and save your settings.