| Parameter | Description |
|---|---|
| Tunnel type | Switch or Tunnel mode. See Tunnel type |
| TCP encapsulation | If this variable is set to yes, then the packets are tunnelled over the TCP connection instead of a UDP connection. This is especially useful for those who want to run a tinc daemon from behind a masquerading firewall, or if UDPpacket routing is disabled somehow. |
| DHCP | If this option is enabled, the network interface will automatically search for an available IP address on the remote network provided a DHCP server exists.(only available in Switch mode) |
| Metric | In Windows, a metric for a route refers to a value assigned to a specific network route that helps the operating system determine the priority of using that route when multiple routes to the same destination are available. This metric is used by the routing table to calculate the most efficient path for network traffic. The route with the lowest metric value is preferred, as it indicates a faster or more reliable connection. Windows automatically assigns metrics based on various factors such as interface speed, link quality, and gateway availability. Users can also manually adjust the metric to prioritize certain routes over others. |
In this mode the MAC addresses of the packets on the VPN will be used to dynamically create a routing table just like an Ethernet switch does. Unicast, multicast and broadcast packets of every protocol that runs over Ethernet are supported in this mode at the cost of frequent broadcast ARP requests and routing table updates.
This mode is primarily useful if you want to bridge Ethernet segments.
In this mode Subnet variables in the host configuration files will be used to form a routing table. Only unicast packets of routable protocols (IPv4 and IPv6) are supported in this mode. This is the default mode, and unless you really know you need another mode, don't change it.