[ 4309.235895][T20133] gre: GRE over IPv4 demultiplexor driver
[ 4311.438000][T20156] ip_gre: GRE over IPv4 tunneling driver
[ 4375.892307][T20728] ip6_gre: GRE over IPv6 tunneling driver
[ 4420.488436][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4426.952391][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4432.840361][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4439.240346][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!