[ 1544.908971][ T1407] gre: GRE over IPv4 demultiplexer driver
[ 1545.351007][ T1430] ip_gre: GRE over IPv4 tunneling driver
[ 1560.306184][ T2002] ip6_gre: GRE over IPv6 tunneling driver
[ 1565.475054][ T2251] ping (2251) used greatest stack depth: 23208 bytes left
[ 1567.495384][   T10] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1570.166436][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1572.086445][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1573.879445][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1575.799445][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!