[ 1355.953819][T30666] gre: GRE over IPv4 demultiplexer driver
[ 1356.450923][T30689] ip_gre: GRE over IPv4 tunneling driver
[ 1363.809753][T31035] ping (31035) used greatest stack depth: 23872 bytes left
[ 1372.083473][T31260] ip6_gre: GRE over IPv6 tunneling driver
[ 1377.619745][T31509] ping (31509) used greatest stack depth: 23712 bytes left
[ 1382.588045][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1384.572009][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1386.429013][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1388.412018][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!