[ 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!