[ 3154.264756][T27726] gre: GRE over IPv4 demultiplexor driver [ 3155.419424][T27749] ip_gre: GRE over IPv4 tunneling driver [ 3167.218125][T27952] ping (27952) used greatest stack depth: 23384 bytes left [ 3191.672886][T28332] ip6_gre: GRE over IPv6 tunneling driver [ 3193.191583][ T4890] ip6_tunnel: tep1 xmit: Local address not yet configured! [ 3215.911447][ C3] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 3219.622482][ C1] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 3222.887461][ C2] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 3226.662458][ C2] ip6_tunnel: tep0 xmit: Local address not yet configured!