[ 1277.225249][T26927] gre: GRE over IPv4 demultiplexer driver
[ 1277.690835][T26950] ip_gre: GRE over IPv4 tunneling driver
[ 1285.134132][T27296] ping (27296) used greatest stack depth: 23520 bytes left
[ 1293.440727][T27521] ip6_gre: GRE over IPv6 tunneling driver
[ 1294.009094][   T10] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1297.057545][   T28] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1303.785853][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1305.769844][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1307.624849][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1309.608853][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!