[ 1521.551750][T10771] gre: GRE over IPv4 demultiplexer driver
[ 1522.029424][T10794] ip_gre: GRE over IPv4 tunneling driver
[ 1539.577463][T11368] ip6_gre: GRE over IPv6 tunneling driver
[ 1545.895065][T11618] ping (11618) used greatest stack depth: 23280 bytes left
[ 1547.174561][   T29] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1551.127406][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1553.174409][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1555.094409][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1557.527405][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!