[ 4130.265396][T28708] gre: GRE over IPv4 demultiplexer driver
[ 4131.888958][T28731] ip_gre: GRE over IPv4 tunneling driver
[ 4180.355223][T29302] ip6_gre: GRE over IPv6 tunneling driver
[ 4201.209880][T29552] ping (29552) used greatest stack depth: 23440 bytes left
[ 4213.858740][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4218.785701][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4223.009663][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4227.873661][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4403.700435][T31911] ping (31911) used greatest stack depth: 23424 bytes left