Hi Aksher, nat traversal feature is used to allow ipsec packets travel across nat devices, so you would use nat traversal whenever there are nat devices in between your vpn end points, this feature enables Ipsec peer stablish a connection through a NAT device by encapsulating ipsec traffic in UDP datagram using por 4500 to provide NAT devices with port information.. nat-t when enabled it autodetecs NAT devices and only encapsulates ipsec traffic when necessary.
to answer your question no, nat traversal does not overides static nat.
To grasp a beter understanding of nat traversal feature and its backround I couldn't find a better link for you than this link bellow.
Login to the FXOS chassis manager.
Direct your browser to https://hostname/, and log-in using the user-name and password.
Go to Help > About and check the current version:
Check the current version availa...
We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
In Syslog I also se...