Utilizando recursos avançados de ACLs em equipamentos de redes cisco

Abstract

Sometimes we find us thinking about as managing a net, but rarely do we spend some time to analyze if the type of traffic that passes through this net is really in accordance with what we need. That is, until traffic problem appears. To plan and to keep a net involve more than what only to certify itself of that packets can flow between devices in the net. As a net administrator, you also need to make sure to keep the security and to establish business politics to allow that only authorized traffic can flow in its net. Your organization also can have lines of direction that you need to implement, as for example, to apply Quality of Service (QoS) in queue polices, to identify and to filter the traffic, or to reduce the cost with the use of Internet Links, whenever possible. Summarizing,to keep the connectivity is important, but, you also need to keep the security, to keep the robust of net, and to follow the business polices of your company. In this work, I will speak as to reach these objectives using Cisco IOS Access Control Lists (ACLs). I will present the types of ACLs, the use of the presented types, as to construct and to apply them of correct form.