[ 4306.404051][T29198] gre: GRE over IPv4 demultiplexer driver
[ 4308.105912][T29221] ip_gre: GRE over IPv4 tunneling driver
[ 4358.813690][T29792] ip6_gre: GRE over IPv6 tunneling driver
[ 4381.103427][T30042] ping (30042) used greatest stack depth: 23440 bytes left
[ 4395.410752][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4400.530702][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4405.202695][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4410.322781][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!