[ 1546.332095][T11584] gre: GRE over IPv4 demultiplexer driver
[ 1546.801248][T11608] ip_gre: GRE over IPv4 tunneling driver
[ 1562.422708][T12181] ip6_gre: GRE over IPv6 tunneling driver
[ 1566.775021][T12380] ping (12380) used greatest stack depth: 22464 bytes left
[ 1572.684082][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1574.668046][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1576.460051][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1578.444059][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!