Local WAN Interface: local address of the tunnel
Remote Host Address: IP/domain name of end opposite; this option disabled in
server mode
Local Subnet: CIDR of the modem LAN, i.e. 192.168.1.0/24
Remote Subnet: CIDR of server subnet, i.e.192.168.7.0/24
Local ID: tunnel local end identification, IP and domain name are available
Remote ID: tunnel opposite end identification, IP and domain name are available
Detection: Detect “dead” (no longer responding) peers
Enable DPD Detection: Enable or disable this function, tick means enable
Time Interval: Set time interval of connect detection (DPD)
Timeout: Set the timeout of connect detection
Action: set the action of connect detection
Advanced Settings: This part contains relevant setting of IKE, ESP, negotiation
mode, etc (both ends MUST match all these parameters, or tunnel negotiation will
fail)