[ 1648.804477][T22916] gre: GRE over IPv4 demultiplexer driver
[ 1649.299734][T22939] ip_gre: GRE over IPv4 tunneling driver
[ 1665.169918][T23510] ip6_gre: GRE over IPv6 tunneling driver
[ 1669.619860][T23709] ping (23709) used greatest stack depth: 23664 bytes left
[ 1670.712074][T23759] ping (23759) used greatest stack depth: 23072 bytes left
[ 1675.636066][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1677.621032][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1679.476030][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1681.524043][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!