[ 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!