[ 1545.565629][T28349] gre: GRE over IPv4 demultiplexer driver
[ 1546.040076][T28372] ip_gre: GRE over IPv4 tunneling driver
[ 1563.415881][T28943] ip6_gre: GRE over IPv6 tunneling driver
[ 1569.339492][T29193] ping (29193) used greatest stack depth: 23136 bytes left
[ 1574.419278][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1576.532235][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1578.452231][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1580.563252][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!