Firewall - Ip Based Acl - Cisco RV220W User Manual

Firewall - IP Based ACL

This screen shows a summary of configured IP based Access List. The Access List is used to
restrict traffic going through the Router either from WAN or LAN port. There are two ways to
restrict data traffic. You can block specific types of traffic according to your ACL definitions.
Or you can allow only specific types of traffic according to your ACL definition. The ACL
rules will be read according to its priority. If there is a match for a packet, the action will be
taken and following lower priority rules will not be checked against this packet.
Note that the higher the number of rules that need to be checked against packets, the lower the
throughput. Use ACL rules with caution.
There are two default rules in the table that cannot be deleted. The first rule will allow all
traffic coming in from LAN port to pass the Router. The second rule will allow all traffic
coming in from WAN port. These two rules have the lowest priority, so without adding any
user defined rules, all the packets can be passed through from both WAN and LAN sides.
The rule will be enabled when the Enable button is checked, and when Date and Time are
matched. If any of conditions are not met, the rule will not be used to check against packets.
IP Based ACL
Page Selection You can select specific page of ACL list from the drop-down menu to
be displayed. Or you can navigate them page by page through Previous
Page and Next Page button.
Priority This defines the order on which rule is checked against first. The
smaller number has higher priority. The default rules will always be
checked last.
Figure 28: IP Based ACL Screen
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