Appropriate licensing is required to enable the VSR-NAT functionality in the system. However, no further licensing enforcement is performed based on resource utilization, such as the consumed bandwidth or the number of NAT bindings.
The following NAT-related functionality is enabled through licensing:
LSN (LSN44, DS-Lite, and NAT64)
L2-Aware NAT
UPnP
geo-redundancy
You can use the CLI or MIB on VSR-NAT to get more information about the number of LSN bindings and LSN bandwidth.
Table: NAT licenses required to unlock NAT functionality describes the licenses required to unlock the VSR-NAT functionality.
| NAT license title | Functionality enabled | License purchased | 
|---|---|---|
LSN  | 
LSN Pool 
  | 
The following two scaling licenses are required: 
 You must purchase both licenses to enable the LSN functionality.  | 
L2AWARE  | 
L2Aware Pool 
  | 
Purchase the L2-Aware license to enable the functionality. The LSN scaling license is not required. Note:  The L2-Aware NAT functionality can only be
								used with the VBNG.  
 | 
UPnP  | 
UPnP commands: configure subscriber-mgmt sub-profile sub-prof-name upnp-policy upnp-pol-name  | 
Purchase the UPnP license to enable the functionality. Note: The UPnP functionality can only be used with
								the L2-Aware NAT.  
 | 
GEO REDUNDANCY  | 
Geo-redundancy Pool 
  | 
Purchase the Geo Redundancy license to enable the functionality.  |