Introduction to access lists

- If you're a Sys Admin, shielding sensitive, critical data…as well as your network resources from every possible…evil exploit is a top priority of yours.…Cisco has some really effective security solutions…to equip you with the tools you'll need to make this…happen in a very real way.…The first power tool is known as…the Access Control List, or ACL.…Access lists give network managers a huge amount of control…over traffic flow throughout the enterprise.…With access lists we can gather basic statistics…on packet flow and we can implement security policies.…

These dynamic tools enable us to protect sensitive devices…from the dangers of unauthorized access.…An access lists is essentially a list of conditions…that categorize packets to be either permitted or denied.…They really come in handy when you need to exercise…control over network traffic.…One of the most common and easiest to understand uses…of access lists is to filter unwanted packets when…implementing security policies.…For example, you can set them up to make very specific…