Posts Tagged ‘block ip address’

Cisco – Filtering Unwanted Packets with Standard Access Lists

Saturday, January 7th, 2012

Access lists (ACLs) are basically statements that packets are compared against for the purpose of taking some action if a match occurs. After an access list is created, it can be applied to inbound or outbound traffic; in some cases it is applied in both directions. You can think of an ACL as a method for filtering packets that meet a specific criteria so further action can be taken on them. (more…)