[ 1378.133915][T10807] gre: GRE over IPv4 demultiplexer driver
[ 1378.631806][T10830] ip_gre: GRE over IPv4 tunneling driver
[ 1394.521821][T11401] ip6_gre: GRE over IPv6 tunneling driver
[ 1402.115736][T11744] ping (11744) used greatest stack depth: 22704 bytes left
[ 1405.013258][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1406.997228][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1408.853224][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1410.901231][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!