Gateway Configuration Screen Definitions
SURFboard® SBG6580 Wireless Cable Modem Gateway
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User Guide
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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.
