Remember the standard and extended IP access-list number ranges. The number ranges you can use to configure a standard IP access list are 1–99 and 1300–1999. The number ranges for an extended IP access list are 100–199 and 2000–2699.
Understand the term implicit deny. At the end of every access list is an implicit deny. What this means is that if a packet does not match any of the lines in the access list, it will be discarded. Also, if you have nothing but deny statements in your list, the list will not permit any packets.
Understand the standard IP access-list configuration command. To configure a standard IP access list, use the access-list numbers 1–99 or 1300–1999 in global configuration mode. Choose permit or deny, then ...