CISCO ASA FW NAT TYPES

Hi All,

I am studying some ccnp security videos but didn't understood below:

exactly how many types of NAT we have in 8.3 and later IOS code ?

videos are teaching below types but what is the relation of object and twice NAT with static NAT/PAT, dynamic NAT/PAT ?

and when to use object NAT and twice NAT over static NAT/PAT, dynamic NAT/PAT ?

static NAT

static pat

dynamic nat

dynamic pat

policy nat

object nat

twice nat

I hope you understood my confusion...means when to use static pat/NAT, dynamic nat/pat and when to use object nat and twice nat? can we use only static nat without object nat or twice nat or can we use only object nat without static nat/pat or can we use only twice nat without static nat/pat or dynamic nat/pat ????

Please guide me..

Thanks a lot for your time

Regards,

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