CalAmp Fusion LTE User Manual page 54

IPsec Support
IPsec Enable
Selecting Enable will launch the IPsec process and start all enabled tunnels. Selecting Disable will stop all tunnels
and shutdown the IPsec process. Note that all enabled tunnels will be launched automatically when the unit
connects to the cellular carrier.
NAT Traversal
This setting only applies to IKE V1 tunnels
Determines how packets are addressed. Selecting Enable will allow packets coming from Local Subnet addresses
through the NAT firewall unchanged. This may be sufficient when traffic only travels from Local Subnet to Remote
Subnet. (LAN Settings > Bind to Eth IP may need to be enabled to make sure that packets generated by Fusion LTE
services appear to originate from a Local Subnet address.) NAT changes the source address to match the Status >
PPP IP Address. NAT-Traversal enables the NAT-T protocol which can support traffic beyond just the Local &
Remote Subnets.
Tunnel Configuration
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