[ 3184.737523][T23672] gre: GRE over IPv4 demultiplexer driver
[ 3186.333506][T23695] ip_gre: GRE over IPv4 tunneling driver
[ 3234.412681][T24279] ip6_gre: GRE over IPv6 tunneling driver
[ 3254.852777][T24528] ping (24528) used greatest stack depth: 23632 bytes left
[ 3255.329772][ T3274] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 3267.362615][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3272.161652][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3276.321640][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3281.249630][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!