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To configure advanced filtering rules, click Add next to the rule title. The "Add
Advanced Filter" screen appears.
To add an advanced filtering rule, define the following rule parameters:
Matching
To apply a firewall rule, a match must be made between
and ports. Use the "Source Address" and "Destination Address" drop-down lists to
define the coupling of source and destination traffic. Port matching will be defined
when selecting protocols. For example, if the
checked for matching traffic flow between the defined source and destination
Operation
This is where the action the rule will take is defined. Select one of the following
radio buttons:
• Drop - Deny access to packets that match the source and destination
addresses and protocol ports defined in "Matching."
• Reject - Deny access to packets that match the source and destination
addresses and protocol ports defined in upper section of the screen, and
send an
ICMP
Chapter 5 Configuring the Router's Security
error or a
reset to the origination peer.
TCP
addresses or ranges
IP
protocol is selected, port 21 will be
FTP
63
s.
IP
IP
IP
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