I am running GNU/Linux version 3.4.113+ with a 6in4 tunnel to a tunnel broker. If I run command
ip -6 route list table local
I see a lot of routes. And one of this route entries is this
local ::1 via :: dev lo proto none metric 0
This is the situation after a reboot of the server for several hours. Under certain circumstances this entry changes to this
local ::1 via :: dev lo proto none metric 0 rtt 18ms rttvar 15ms cwnd 10
Till now I couldn't figure out why. Are there any ideas what could cause this change ?