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What is ASA NAT Control.

Ravi_916
Beginner
Beginner

What is NAT Control in ASA?

i think it was used in older versions of ASA. but why?, and what was the work of NAT Control.

3 Replies 3

Sheraz.Salim
VIP Advisor VIP Advisor
VIP Advisor

Starting from the new software 8.3(1) and forward the ASA firewall doesnt know any concept of "nat-control" anymore

please do not forget to rate.

rohosfor
Cisco Employee
Cisco Employee

PIX required NAT to move between interfaces. This was required even if the IP addresses didn't change. The PIX became the ASA, and the ASA continued using globals, statics, and conduits. In 8.0 no NAT control was introduced eliminating the requirement to NAT everything. I hope that helps.

Cristian Matei
Collaborator
Collaborator

Hi,B

    

    Back in those days, with PIX/ASA, traffic flow is controlled by the security-levels or ACL's (ACL's override security levels). NAT-control came as an additional mechanism to control traffic lows through the ASA: assuming the ACL would allow it, a NAT statement had to be matched as well, in order for traffic to be allowed.

 

Regards,

Cristian Matei.

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