[ 3988.177146][T24609] gre: GRE over IPv4 demultiplexor driver
[ 3990.325288][T24633] ip_gre: GRE over IPv4 tunneling driver
[ 4020.532389][T24930] ping (24930) used greatest stack depth: 23488 bytes left
[ 4050.194414][T25207] ip6_gre: GRE over IPv6 tunneling driver
[ 4081.364092][T25500] ping (25500) used greatest stack depth: 22400 bytes left
[ 4092.467596][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4098.483542][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4103.539533][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4109.427548][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!