question on Cisco router NAT

[Herman2018]

Hi, can anyone please advise how to translate both source and destination ip address on cisco router NAT config? thanks in advance. 

[MHM Cisco World]

I dont try before 

But try this way

Ip nat inside sourcr 

Ip nat outside source 

Both need to config.

Try and I hope it work.

MHM

[M02@rt37]

Hello @Herman2018 

Please refer here:

https://community.cisco.com/t5/routing/nat-translate-outside-source-and-destination/td-p/1883432

Note that PAT is not allowed from the outside to the inside so it will not work.

[Joseph W. Doherty]

Recall Cisco has documentation on main site showing how to do that.  Try searching their main site for "two way nat" or "double nat".

PS:

Just did a quick search, so far haven't found Cisco documentation on this subject (also known as "twice nat" or "overlapping nat"), but there's various articles, outside of Cisco, discussing this issue, and how to perform it, on Cisco equipment.  ASA slook like they can do it on one device, IOS kind of Cisco devices might required two nat devices.)  There are also some community posts on this subject too.