[ 4676.740065][T25640] gre: GRE over IPv4 demultiplexor driver
[ 4679.008257][T25663] ip_gre: GRE over IPv4 tunneling driver
[ 4746.460586][T26234] ip6_gre: GRE over IPv6 tunneling driver
[ 4776.646481][T26492] ping (26492) used greatest stack depth: 23584 bytes left
[ 4793.929956][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4800.457878][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4806.090866][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4812.745926][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!