CCNA Chapter 12

• <1-99> and 
• <1300-1999> (expanded range)

• <100-199> or
• <2000-2699> (extended range)

• R1(config)#access-list "#" "permit or deny" "host name or address, any, host" "wild card"
• e.x. R1(config)#access-list 10 deny 192.168.12.0 0.0.0.255

Reverse of subnet masks. 0.0.0.255 where 0 is an exact match and 255 is any.

R1(config)#access-list "#" "permit or deny" "network protocol ie. tcp" "source host or network address" "destination host or network address" "protocol ie. telnet"

ex. R1(config)#access-list 110 deny 10.0.1.0 0.0.0.255 any 23

• R1(config)#ip access-list "standard or extended" "# or word"
• R1(config-std-ncl)#"deny or permit" "network #" "wild card"