——–Using Telnet
control + shift + 6 Then X= Suspend telnet session
resume 1
enter on blank line, resumes recent session
disconnect – kills your open telnet session
clear line = disconnect user on your router
——-Standard Access lists ACL (Applied closest to destination)
access-list [0-99] permit [ip address] [wildcard]
int s0/0
access-group [number] [in/out]
——-Extended ACcess lists ACL
access-list [100-199] permit/deny [ip/tcp/UDP] [sourceIp] [wildcard] [destination ip][wildcard]
int s0/0
access-group [number] [in/out]
——-Named Access lists
conf t
ip access-list extended [name]
permit ip [ip address] [wildcard] [dest ip] [wildcard]
[line number] permit ip [ip address] [wildcard] [dest ip] [wildcard] – Add a line
no 15 – remove line 15
——Established Access lists
ip access-list extended [name]
permit tcp any any established
int WAN
ip access-group [name] in