[ 3180.703403][T28881] gre: GRE over IPv4 demultiplexor driver
[ 3181.916337][T28904] ip_gre: GRE over IPv4 tunneling driver
[ 3217.986852][T29475] ip6_gre: GRE over IPv6 tunneling driver
[ 3233.164923][T29725] ping (29725) used greatest stack depth: 22128 bytes left
[ 3242.907594][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3246.747262][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3250.076275][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3253.851282][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!