[ 4444.072050][T26088] gre: GRE over IPv4 demultiplexor driver
[ 4446.266244][T26111] ip_gre: GRE over IPv4 tunneling driver
[ 4507.069349][T26684] ip6_gre: GRE over IPv6 tunneling driver
[ 4537.703506][T26935] ping (26935) used greatest stack depth: 23376 bytes left
[ 4557.333305][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4564.502055][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4570.453056][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4577.685030][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!