[ 1495.981065][T11879] gre: GRE over IPv4 demultiplexer driver
[ 1496.430847][T11902] ip_gre: GRE over IPv4 tunneling driver
[ 1499.058927][T12041] ip (12041) used greatest stack depth: 23696 bytes left
[ 1511.542118][T12482] ip6_gre: GRE over IPv6 tunneling driver
[ 1521.592006][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1523.511978][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1525.303981][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1527.287982][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1547.174934][T13873] ping (13873) used greatest stack depth: 23392 bytes left