Identify type of static NAT

[mahesh18]

Hi Everyone,

On ASA  version 8.2(5)57 i see 3 types of NAT config

one is say

1>static (dmz,outside) 142.x.x.x 142.x.x.x netmask 255.255.255.255

where public IP is same

2>static (zonea,inside) 10.50.2.3 10.50.2.3 netmask 255.255.255.255

3>static (zoneb,outside) 140.x.x.x 192.168.50.3 netmask 255.255.255.255

Need to confirm above 3 are which types of static nat?

Regards

MAhesh

[Henrik Grankvist · Accepted solution]

Hi

1 and 2 are identity NAT.

3 is doing a static NAT for 192.168.50.3 to 140.x.x.x

[mahesh18]

Hi Henrik,

For identity NAT is user is coming from source interface say DMZ going to outside and if  source IP

is 10.x.x.x  and it is trying to reach destination IP say 3.3.3.3.3 then source IP will remain same right?

Regards

MAhesh

[Shivapramod M · Accepted solution]

Hi Mahesh,

You are correct.

Identity NAT—A real address is statically translated to itself, essentially bypassing NAT.

Thanks,
Shivapramod M
Please remember to select a correct answer and rate helpful posts