[ 4024.890164][T24600] gre: GRE over IPv4 demultiplexor driver
[ 4027.095958][T24624] ip_gre: GRE over IPv4 tunneling driver
[ 4058.525621][T24921] ping (24921) used greatest stack depth: 23488 bytes left
[ 4088.566197][T25197] ip6_gre: GRE over IPv6 tunneling driver
[ 4115.322930][T25447] ping (25447) used greatest stack depth: 23360 bytes left
[ 4131.196749][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4137.404599][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4142.524663][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4148.669658][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!