Actiontec MI424WR User Guide - Page 92

Matching, Operation, radio buttons

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Chapter 6 Configuring the Router's Security 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 IP addresses or ranges 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 FTP protocol is selected, port 21 will be checked for matching traffic flow between the defined source and destination IPs. 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 IP addresses and protocol ports defined in "Matching." • Reject - Deny access to packets that match the source and destination IP addresses and protocol ports defined in upper section of the screen, and send an ICMP error or a TCP reset to the origination peer. 89

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89
Chapter 6
Configuring the Router’s Security
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
IP
addresses or ranges
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
FTP
protocol is selected, port 21 will be
checked for matching traffic flow between the defined source and destination
IP
s.
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
IP
addresses and protocol ports defined in “Matching.”
•
Reject
- Deny access to packets that match the source and destination
IP
addresses and protocol ports defined in upper section of the screen, and
send an
ICMP
error or a
TCP
reset to the origination peer.