[ 4631.677717][T24705] gre: GRE over IPv4 demultiplexor driver
[ 4633.864191][T24728] ip_gre: GRE over IPv4 tunneling driver
[ 4699.314157][T25301] ip6_gre: GRE over IPv6 tunneling driver
[ 4738.805727][T25645] ping (25645) used greatest stack depth: 21920 bytes left
[ 4745.079346][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4751.415267][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4756.727290][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4763.064259][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!