Ip Based Acl - Linksys WRVS4400N User Manual

• Cookies—A cookie is data stored on your PC and used by Internet sites when you
interact with them, so you may not want to deny cookies.
• ActiveX—ActiveX is a Microsoft (Internet Explorer) programming language for
websites. If you deny ActiveX, you run the risk of not having access to Internet sites
using this programming language. Also, Windows Update uses ActiveX, so if this is
blocked, Windows update will not work.
• Access to Proxy HTTP Server—If local users have access to WAN proxy servers, they
may be able to circumvent the Router's content filters and access Internet sites blocked
by the Router. Denying Proxy will block access to any WAN proxy servers.
Change these settings as described here and click Save Settings to apply your changes, or click
Cancel Changes to cancel your changes. Help information is displayed on the right-hand side
of the screen, and click More for additional details.

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.
The following are descriptions on each of the fields in the ACL Table:
WRVS4400N User Guide
Setting Up and Configuring the Router
Firewall Tab
59