What is a ACL?
a ACL is a series of IOS commands used to filter packets based on information found in the packet header.
What is a ACE?
Access command entry, which becomes a ACL
What two layers does packet filtering occur?
layers 3 and 4, network and transport
What are two types of ACLs?
Named and Numbered
Which is the preffered method to use?
Named
What does the ip access-list command do?
Creates a named ACL
How do you calculate a wildcard mask?
subtract it from 255.255.255.255
What keyword substitutes for 0.0.0.0?
host - bits need to match
What keyword substitutes for 255.255.255.255
any - bits dont need to match