[ 3539.671357][T20513] gre: GRE over IPv4 demultiplexor driver
[ 3541.764069][T20536] ip_gre: GRE over IPv4 tunneling driver
[ 3605.313442][T21109] ip6_gre: GRE over IPv6 tunneling driver
[ 3647.860568][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3653.877491][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3658.868545][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3665.204478][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!