[ 4688.099499][T23287] gre: GRE over IPv4 demultiplexor driver
[ 4690.637576][T23318] ip_gre: GRE over IPv4 tunneling driver
[ 4756.022071][T23889] ip6_gre: GRE over IPv6 tunneling driver
[ 4806.845547][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4813.438407][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4818.877428][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4825.470485][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!