! *************************** Statički PAT
access-list 38 permit x.x.x.x w.w.w.w (host kojem se vrši PAT)
ip nat inside source list 1 interface ser x/y overload (serijski interface koji ima vanjsku adresu i na tu adresu se vrši NAT)
interface ser x/y
ip nat inside
interface ser z/w
ip nat outside

! *************************** Dinamički PAT
ip nat pool IME_POOLA x.x.x.x y.y.y.y (range adrese) netmask m.m.m.m 
access-list 26 permit x.x.x.x w.w.w.w (hostovi kojima se izvršava NAT)
ip nat inside source list 26 pool IME_POOLA overload
interface ser x/y
ip nat inside
interface ser /w
ip nat outside

show ip nat translations
debug ip nat (undebug all)