ACL – access lists
So…Why Are Access Lists Important? An ACL is literally just a list of statements. There are two major types; standard and extended. Standard is just a list of source ip addresses with a permit or…
NAT
NAT – network address translation
How NAT Works The networks under RFC1918 which are considered private do NOT work on the internet. Well, they could theoretically but if you get internet from an ISP then those ISP have a ACL…
Defining Networks with Subnet Masks
Subnetmask is the definer of networks. What part represents the network itself, and what part of the ip address represents the host in the network. There are 3 classes The first octet defines the class…