[ 4612.754672][T24693] gre: GRE over IPv4 demultiplexor driver
[ 4614.982976][T24716] ip_gre: GRE over IPv4 tunneling driver
[ 4680.048316][T25290] ip6_gre: GRE over IPv6 tunneling driver
[ 4719.329264][T25634] ping (25634) used greatest stack depth: 23328 bytes left
[ 4725.558620][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4731.829550][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4737.206533][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4743.477560][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!