Do not hard code MTU default

diff --git a/device.go b/device.go
index 5adf33a129e5ae89ce64c43eb1de37a45e0f2a06..3ad53c9adfd9c155f0503287e6572af03029cfd7 100644 (file)
--- a/device.go
+++ b/device.go
@@ -259,8 +259,8 @@ func NewDevice(tun TUNDevice, logger *Logger) *Device {
        device.tun.device = tun
        mtu, err := device.tun.device.MTU()
        if err != nil {
-               logger.Error.Println("Trouble determining MTU, assuming 1420:", err)
-               mtu = 1420
+               logger.Error.Println("Trouble determining MTU, assuming default:", err)
+               mtu = DefaultMTU
        }
        device.tun.mtu = int32(mtu)