[ 4248.835899][T29313] gre: GRE over IPv4 demultiplexer driver
[ 4250.569781][T29336] ip_gre: GRE over IPv4 tunneling driver
[ 4301.106966][T29908] ip6_gre: GRE over IPv6 tunneling driver
[ 4330.896387][T30252] ping (30252) used greatest stack depth: 23104 bytes left
[ 4336.023396][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4340.822323][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4345.047301][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4350.039339][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!