User's Manual

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SMCD3GN2 Wireless Cable Modem Gateway Administrator Manual
NAT Allows multiple users at your local site to access the Internet using a single pubic IP address. The
submenus let you:
NAT > Port Forwarding
• Configure predefined and custom port forwarding settings to let Internet users
access local services such as the Web Server or FTP server at your local site.
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NAT > 1-to-1 Mapping
• Perform 1-to-1 mapping between global IP addresses on the cable modem WAN
interface and the private IP address on the LAN.
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Firewall Lets you enable or disable the Gateway’s firewall. Submenus let you:
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Firerwall > Access Control
• Block traffic at the Gateway's LAN interfaces from accessing the Internet.
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Firerwall > Special Application
• Detect port triggers for detect multiple-session applications and allow them to
pass the firewall.
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Firerwall > URL Blocking
• Block access to certain Web sites from local computers by entering either a full
URL address or keywords of the Web site.
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Firerwall > Schedule Rule
• Define schedule rules that work with the Gateway’s URL blocking feature.
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Firerwall > Email/Syslog Alert
• Send email notifications or add entries to the syslog when traffic is blocked,
attempts are made to intrude onto the network, and local computers try to access
block URLs.
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Firerwall > DMZ
• Configure a local client computer for unrestricted two-way Internet access by
defining it as a Virtual DMZ host.
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Tools Provides the following submenus with utilities for performing the following activities:
Tools > Configuration Tools Back up and restore Gateway configuration settings locally and remotely over the
WAN, and restore Gateway factory default settings.
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Tools > Reboot Reboot the Gateway.
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Tools > Diagnostics Perform trace route and ping diagnostic operations.
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Tools > SNTP Client Configure the Gateway to act as a SNTP client.
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VPN Lets you enable or disable the Gateway’s VPN functions. When VPN functions are
enabled, submenus let you:
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VPN > Access Control
• Allow PC clients behind the Gateway to access the IPSec VPN tunnel.
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VPN > IPsec Tunnel
Configuration
• Define up to five tunnels and view, clear, refresh, and save the VPN log.
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VPN > PPTP/L2TP
Configuration
• Set up to 50 Point-to-Point Tunneling Protocol (PPTP) / Layer Two Tunneling
Protocol (L2TP) user accounts and define a pre-shared phrase.
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Status Shows the connection status of the Gateway interfaces, firmware, hardware version
numbers, illegal attempts to access your network, and information about DHCP
client PCs current connected to the Gateway. The submenu lets you:
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Status > Cable Status
• View cable initialization procedures, and cable downstream and upstream status.
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