Cisco IOS XR

Implementing IPSec Network Security on Cisco IOS XR Software
How to Implement General IPSec Configurations for IPSec Networks
SC-119
Cisco IOS XR System Security Configuration Guide
Note This IPSec feature is supported only on the Cisco IPSec VPN SPA.
Disabling IPSec NAT Transparency
This task disables NAT transparency if you already know that your network uses IPSec-awareness NAT
(spi-matching scheme).
SUMMARY STEPS
1. configure
2. crypto nat-transparency disable
3. end
or
commit