[ 2639.323602][T19281] gre: GRE over IPv4 demultiplexor driver
[ 2641.083392][T19304] ip_gre: GRE over IPv4 tunneling driver
[ 2696.770619][T19875] ip6_gre: GRE over IPv6 tunneling driver
[ 2735.340616][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2740.652502][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2745.068474][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2750.380494][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!