[ 4483.163865][T25859] gre: GRE over IPv4 demultiplexor driver [ 4485.252535][T25882] ip_gre: GRE over IPv4 tunneling driver [ 4508.113757][T26085] ping (26085) used greatest stack depth: 22992 bytes left [ 4548.930118][T26454] ip6_gre: GRE over IPv6 tunneling driver [ 4593.127724][ C2] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4599.271560][ C1] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4604.520594][ C1] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4610.727579][ C3] ip6_tunnel: tep0 xmit: Local address not yet configured!