[ 4183.955565][T29242] gre: GRE over IPv4 demultiplexer driver
[ 4185.621642][T29265] ip_gre: GRE over IPv4 tunneling driver
[ 4235.577513][T29838] ip6_gre: GRE over IPv6 tunneling driver
[ 4264.960890][T30181] ping (30181) used greatest stack depth: 23440 bytes left
[ 4270.306282][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4275.554159][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4279.842201][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4284.834176][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!