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ADSL2+ Modem Router DM111PSPv2 User Manual
Security and Firewall Protection 3-5
v1.0, December 2008
Inbound Firewall Traffic Rules
When the Inbound Traffic radio button is selected and you click Add in the Firewall Rules screen
(see
Figure 3-1 on page 3-3), the Add New Inbound IP Filtering Rule screen displays:
Source IP Address Make a selection from the drop-down list:
• ALL. The rule applies to all source IP addresses.
• SINGLE. Enter the source IP address in the “IP addr.” field.
• SUBNET. Enter the source IP address in the “IP addr.” field and the subnet
address in the “NetMask” field.
Destination IP Address Make a selection from the drop-down list:
• ALL. The rule applies to all destination IP addresses.
• SINGLE. Enter the destination IP address in the “IP addr.” field.
• SUBNET. Enter the destination IP address in the “IP addr.” field and the subnet
address in the “NetMask” field.
Port Range You can specify a port range only when TCP, UDP, or User Defined is selected
from the Protocol drop-down list. Enter the start port for the port range in the
“Start” field and enter the end port for the port range in the “End” field.
Figure 3-3
Table 3-1. Outbound IP Filtering Rule Settings (continued)
Settings Description