Posts tagged “ACL”
How to Properly Use Wildcard Masks
You will need to become familiar with how wildcard masks work in order to properly configure many different Cisco IOS commands. Mostly you will encounter wildcard masks with access control lists and when configuring the dynamic routing protocol OSPF. ACL’s are also used when configuring NAT and PAT settings. Because wildcard masks come up often they are a very important topic to understand for your ICND2 and CCNA Exam.
Managing Traffic With Access Control Lists
Access Control Lists are very important to ensure that network traffic is well managed and under control. Just like a toll both checks every car before it proceeds on the highway, Access Control Lists can be set up on a router to check each and every packet as it comes through and block unwanted traffic.
A proper Access Control List configuration will increase security and ensure proper network speeds for time sensitive traffic like voice calls or video conferences.