[ 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!