[ 4451.355841][T20522] gre: GRE over IPv4 demultiplexor driver
[ 4453.424985][T20546] ip_gre: GRE over IPv4 tunneling driver
[ 4515.494590][T21118] ip6_gre: GRE over IPv6 tunneling driver
[ 4559.181455][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4565.260396][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4570.445392][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4576.524407][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!