[ 4417.285655][T25814] gre: GRE over IPv4 demultiplexor driver [ 4419.271229][T25837] ip_gre: GRE over IPv4 tunneling driver [ 4478.638838][T26409] ip6_gre: GRE over IPv6 tunneling driver [ 4504.760846][T26659] ping (26659) used greatest stack depth: 23032 bytes left [ 4520.112581][ C2] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4525.999506][ C2] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4530.863542][ C2] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4536.815504][ C2] ip6_tunnel: tep0 xmit: Local address not yet configured!