[ 4622.201873][T23264] gre: GRE over IPv4 demultiplexor driver
[ 4624.464552][T23287] ip_gre: GRE over IPv4 tunneling driver
[ 4690.100092][T23861] ip6_gre: GRE over IPv6 tunneling driver
[ 4736.054387][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4742.518312][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4748.021316][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4754.421324][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!