ALs

NAT

local -> inside global -> outside global -> outside local

static
host 10.1.1.1 ---- router 190.44.1.2 ----- internet
ip nat inside source static 10.1.1.1 190.44.1.2
int e0, ip nat inside, exit
int s0, ip nat outside, exit

dynamic
10.1.1.x -> 190.44.1.x
ip nat pool mynetwork 190.44.1.2 190.44.1.254 netmast 255.2552.255.0
ip nat inside source list 1 pool mynetwork
exit
int e0, ip address 10.1.1.1 255.255.255.0, ip nat inside
int Serial0, ip address 190.44.1.1 255.255.255.0, ip nat outside, exit
access-list 1 permit 10.1.1.0 0.0.0.255

PAT (Overloading)
10.1.1.x -> 190.44.1.1
ip nat pool globalnet 190.44.1.1 190.44.1.1 netmask 255.255.255.0
ip nat inside source list pool globalnet overload, exit
...

access-list 20 permit 10.1.1.0 0.0.0.255
ip nat inside source list 20
int s0 overload

NAT mappings   sh ip nat translations
clear ip nat translation *