[ 4676.582380][T24860] gre: GRE over IPv4 demultiplexor driver
[ 4678.867335][T24883] ip_gre: GRE over IPv4 tunneling driver
[ 4744.711713][T25456] ip6_gre: GRE over IPv6 tunneling driver
[ 4772.740638][T25705] ping (25705) used greatest stack depth: 23600 bytes left
[ 4789.365471][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4795.766409][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4801.142403][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4807.413444][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4915.109987][T26933] ping (26933) used greatest stack depth: 22400 bytes left