Greentel R201GC55-232, User Manual, Page: 43 / 72

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Firewall – Basic
Overall description: set the basic rules of firewall.
Item Description Default Value
Default Filter Policy Select Accept or Block. Accept
Block Anonymous WAN
Requests Select to filter PING
requests. Not enabled
Filter Multicast Select to enable the Filter
Multicast function. Enabled
Defend DoS Attack Select to enable Defend
DoS
Attack. Enabled
4.6.2 Firewall -> Filtering
This page is to configure access filters with parameters like protocol type, source address,
etc.
Filtering (May set up to 50 filters.)
Overall description: filter data packets passing through the router according to their
protocol, source/destination addresses and ports, to provide a safe intranet environment.
Item Description Default Value
Enable Select to enable the filter. Blank
Proto Select TCP/UDP/ICMP/All. All
Source Enter source address for the
filter. Blank
Source Port Enter source port for the
filter. Blank
Destination Enter destination address
for the filter. Blank
Destination Port Enter destination port for the
filter. Blank
Action Select Accept or Block. Accept
Log Select to enable, so system
will make the log of filtering. Disabled
Description Write down descriptions of
the
filtering parameters for
future reference. Blank