[ 3176.197770][T29014] gre: GRE over IPv4 demultiplexor driver
[ 3177.368387][T29037] ip_gre: GRE over IPv4 tunneling driver
[ 3192.829791][T29296] ping (29296) used greatest stack depth: 22704 bytes left
[ 3215.837859][T29616] ip6_gre: GRE over IPv6 tunneling driver
[ 3242.717767][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3246.621671][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3249.886701][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3253.790682][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!