[ 1210.487776][T29954] gre: GRE over IPv4 demultiplexer driver
[ 1211.049837][T29977] ip_gre: GRE over IPv4 tunneling driver
[ 1227.693000][T30548] ip6_gre: GRE over IPv6 tunneling driver
[ 1232.521648][T30756] ping (30756) used greatest stack depth: 23664 bytes left
[ 1238.708058][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1240.756022][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1242.677009][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1244.725019][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!