[ 4432.084014][T26012] gre: GRE over IPv4 demultiplexor driver [ 4434.153079][T26035] ip_gre: GRE over IPv4 tunneling driver [ 4494.289457][T26608] ip6_gre: GRE over IPv6 tunneling driver [ 4515.243142][T26808] ping (26808) used greatest stack depth: 22688 bytes left [ 4536.383400][ C0] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4542.399282][ C2] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4547.520278][ C2] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4553.471290][ C3] ip6_tunnel: tep0 xmit: Local address not yet configured!