[ 4622.195190][T24821] gre: GRE over IPv4 demultiplexor driver
[ 4624.349972][T24844] ip_gre: GRE over IPv4 tunneling driver
[ 4632.138755][T24908] ping (24908) used greatest stack depth: 23336 bytes left
[ 4690.075723][T25419] ip6_gre: GRE over IPv6 tunneling driver
[ 4736.116471][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4742.579401][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4748.084408][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4754.547405][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!