[ 4405.281895][T20679] gre: GRE over IPv4 demultiplexor driver
[ 4407.292890][T20702] ip_gre: GRE over IPv4 tunneling driver
[ 4468.158916][T21274] ip6_gre: GRE over IPv6 tunneling driver
[ 4510.935549][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4517.015412][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4522.071554][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4528.024406][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!