[ 1518.380264][T17467] gre: GRE over IPv4 demultiplexer driver
[ 1518.803314][T17490] ip_gre: GRE over IPv4 tunneling driver
[ 1533.631338][T18063] ip6_gre: GRE over IPv6 tunneling driver
[ 1537.684430][T18263] ping (18263) used greatest stack depth: 22896 bytes left
[ 1543.289137][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1545.208115][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1546.937103][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1548.920114][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!