services.strongswan-swanctl.swanctl.connections.<name>.local_port

Local UDP port for IKE communication. By default the port of the socket backend is used, which is usually 500. If port 500 is used, automatic IKE port floating to port 4500 is used to work around NAT issues.

Using a non-default local IKE port requires support from the socket backend in use (socket-dynamic).

StrongSwan default: 500