[ 4465.708496][T22428] gre: GRE over IPv4 demultiplexor driver [ 4467.813271][T22451] ip_gre: GRE over IPv4 tunneling driver [ 4530.831673][T23030] ip6_gre: GRE over IPv6 tunneling driver [ 4558.076940][T23279] ping (23279) used greatest stack depth: 22256 bytes left [ 4574.276097][ C2] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4580.421002][ C1] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4585.540044][ C0] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4591.428017][ C0] ip6_tunnel: tep0 xmit: Local address not yet configured!