User's Manual

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SMCD3GN2 Wireless Cable Modem Gateway Administrator Manual
Table 30. Customer Defined Filter Menu Options
Option Description
Name Name for identifying the custom service. The name is for reference purposes only.
Type The type of protocol you want to filter. Choices are TCP, UDP, and TCP/UDP. Default is TCP.
LAN IPs Lets you apply the filter to any LAN IP addresses, a single LAN IP address, or a range of LAN
IP addresses.
• If you select one LAN IP address, enter the IP address in the Start IP field.
• If you select a range of LAN IP addresses, enter the starting IP address in the Start IP field
and the ending IP address in the End IP field.
Start IP To specify:
• A single remote IP address, enter the remote IP address.
• A range of remote IP addresses, enter the starting IP address here and the ending IP
address range in the next field.
This field is unavailable if the Gateway is configured for any remote IP addresses.
End IP Ending IP address in the LAN IP address range to which the filter will be applied. This field is
unavailable if the Gateway is configured for any LAN IP address or a single LAN IP address.
From Port Starting port number on which the filter will be applied. If necessary, contact the application
vendor for this information.
To Port Ending port number on which the filter will be applied. If necessary, contact the application
vendor for this information.
Responding to or Ignoring Pings
When the Gateway firewall module is enabled, the Gateway can respond to pings sent to its
WAN port from an external IP over the Internet and sent to its public LAN port.
To have the WAN port of the Gateway ignore ping requests from the Internet that are sent to
the Gateway’s WAN IP address, uncheck Respond to Ping on Internet WAN Port at the
bottom of the Access Control menu and click Apply.
To have the public LAN port of the Gateway ignore ping requests from the Internet that are
sent to the Gateway’s WAN IP address, uncheck Respond to Ping on Public LAN Port at
the bottom of the Access Control menu and click Apply.