[ 1516.346616][T28414] gre: GRE over IPv4 demultiplexer driver
[ 1516.812800][T28437] ip_gre: GRE over IPv4 tunneling driver
[ 1532.402450][T29011] ip6_gre: GRE over IPv6 tunneling driver
[ 1538.024402][   T10] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1538.936199][   T10] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1539.875312][T29354] ping (29354) used greatest stack depth: 23336 bytes left
[ 1542.736157][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1544.721154][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1546.577152][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1548.561150][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!