[ 4432.537074][T26252] gre: GRE over IPv4 demultiplexor driver
[ 4434.655751][T26275] ip_gre: GRE over IPv4 tunneling driver
[ 4496.911275][T26848] ip6_gre: GRE over IPv6 tunneling driver
[ 4524.516110][T27097] ping (27097) used greatest stack depth: 23360 bytes left
[ 4540.263958][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4546.152806][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4551.143817][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4557.159835][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!