[ 1371.811857][  T615] gre: GRE over IPv4 demultiplexer driver
[ 1372.298073][  T638] ip_gre: GRE over IPv4 tunneling driver
[ 1377.849160][  T891] ping (891) used greatest stack depth: 24096 bytes left
[ 1379.829720][  T985] ping (985) used greatest stack depth: 22944 bytes left
[ 1388.083950][ T1210] ip6_gre: GRE over IPv6 tunneling driver
[ 1393.911427][T14284] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1398.647366][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1400.696361][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1402.551371][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1404.600362][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!