[ 4360.965515][T29213] gre: GRE over IPv4 demultiplexer driver
[ 4362.576993][T29236] ip_gre: GRE over IPv4 tunneling driver
[ 4411.499851][T29816] ip6_gre: GRE over IPv6 tunneling driver
[ 4432.572597][T30065] ping (30065) used greatest stack depth: 23440 bytes left
[ 4432.982305][ T6253] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 4445.396868][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4450.323883][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4454.739874][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4459.668903][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!