[ 2168.257329][T17618] gre: GRE over IPv4 demultiplexor driver
[ 2169.968764][T17641] ip_gre: GRE over IPv4 tunneling driver
[ 2222.144486][T18216] ip6_gre: GRE over IPv6 tunneling driver
[ 2258.098987][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2263.217909][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2267.633903][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2272.689914][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!