I have a native IPv6 setting that worked well until I installed the miredo client. After starting the miredo daemon, it will create a new default route overriding the original one. My intention is to use miredo to connect to other teredo nodes, not for IPv6 surfing. And, according to the miredo.conf: Code: NOTE: Use of Miredo as a Teredo client is possible even if the system already has IPv6 connectivity through another way (native, 6to4, TSP, etc). In that case, Miredo will only be used to reach other Teredo clients, as its tunneling interface has a default route with a higher metric (which is to say a lower pri- ority) than the other network interfaces. So I'm sure it can work that way, and it did work on my other (Linux) box. Any suggestion is appreciated.