Configure one side of an IPsec Network Address Translation Traversal (NAT-T) connection as a Responder device. By default, both sides of an IPsec NAT-T connection are initiators.
ipsec responder-only
no ipsec responder-only
The default is initiator.
Logical Interface Configuration
This command does not apply to all hardware platforms. For more information about feature support, see VOSS Feature Support Matrix.