[ 4297.212629][T20142] gre: GRE over IPv4 demultiplexor driver
[ 4299.641816][T20176] ip_gre: GRE over IPv4 tunneling driver
[ 4361.908824][T20756] ip6_gre: GRE over IPv6 tunneling driver
[ 4405.741017][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4412.204721][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4417.324738][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4423.341740][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!