[ 4657.640110][T25792] gre: GRE over IPv4 demultiplexor driver [ 4659.817004][T25815] ip_gre: GRE over IPv4 tunneling driver [ 4725.736699][T26395] ip6_gre: GRE over IPv6 tunneling driver [ 4754.292950][T26645] ping (26645) used greatest stack depth: 23472 bytes left [ 4770.867473][ C2] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4777.267450][ C3] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4782.772413][ C0] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4789.235422][ C2] ip6_tunnel: tep0 xmit: Local address not yet configured!