[ 1377.254692][T26913] gre: GRE over IPv4 demultiplexer driver
[ 1377.713582][T26936] ip_gre: GRE over IPv4 tunneling driver
[ 1393.343685][T27511] ip6_gre: GRE over IPv6 tunneling driver
[ 1400.779163][T27854] ping (27854) used greatest stack depth: 23320 bytes left
[ 1403.621453][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1405.606413][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1407.462412][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1409.446414][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1420.705823][T28544] ip (28544) used greatest stack depth: 23208 bytes left