[ 4454.995716][T26189] gre: GRE over IPv4 demultiplexor driver
[ 4456.980712][T26212] ip_gre: GRE over IPv4 tunneling driver
[ 4516.489884][T26786] ip6_gre: GRE over IPv6 tunneling driver
[ 4542.450200][T27042] ping (27042) used greatest stack depth: 23400 bytes left
[ 4557.696510][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4563.712462][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4568.641459][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4574.592499][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4735.078752][T28835] ping (28835) used greatest stack depth: 22960 bytes left