[ 1331.068123][T21008] gre: GRE over IPv4 demultiplexer driver
[ 1331.582341][T21031] ip_gre: GRE over IPv4 tunneling driver
[ 1339.275888][T21377] ping (21377) used greatest stack depth: 23520 bytes left
[ 1347.713276][T21602] ip6_gre: GRE over IPv6 tunneling driver
[ 1358.253976][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1360.301947][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1362.156950][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1364.204961][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!