[ 1673.284446][T16920] gre: GRE over IPv4 demultiplexer driver
[ 1673.769274][T16943] ip_gre: GRE over IPv4 tunneling driver
[ 1689.610286][T17515] ip6_gre: GRE over IPv6 tunneling driver
[ 1695.177715][T17764] ping (17764) used greatest stack depth: 23072 bytes left
[ 1696.280847][   T33] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1700.064770][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1702.049775][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1703.904774][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1705.953770][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!