[ 2523.705479][T17630] gre: GRE over IPv4 demultiplexor driver
[ 2525.702780][T17653] ip_gre: GRE over IPv4 tunneling driver
[ 2585.762882][T18231] ip6_gre: GRE over IPv6 tunneling driver
[ 2627.226538][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2633.050443][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2637.914551][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2643.611435][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!