Although using hardware firewalls are an excellent step forward when securing your network. They can cost money and are not cheap to set up and configure. Using CBAC is built-into the Cisco IOS router and helps filter those unwanted protocols that are in your network. When setting up routers as firewalls you have some …

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Understanding Access Control Lists is an important role for moving up into the CCNA area. ACLs can get confusing and cause network problems if not implemented correctly. I think what I outlined below explains in a nutshell of what you can expect from ACLs. I would still read and find more information about ACLs on the …

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