[ 1328.374550][T28356] gre: GRE over IPv4 demultiplexer driver
[ 1328.840353][T28379] ip_gre: GRE over IPv4 tunneling driver
[ 1344.834245][T28950] ip6_gre: GRE over IPv6 tunneling driver
[ 1352.397428][T29294] ping (29294) used greatest stack depth: 22848 bytes left
[ 1355.246989][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1357.230943][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1359.087928][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1361.070930][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!