[ 4272.254494][T28786] gre: GRE over IPv4 demultiplexer driver
[ 4273.843021][T28809] ip_gre: GRE over IPv4 tunneling driver
[ 4321.451185][T29382] ip6_gre: GRE over IPv6 tunneling driver
[ 4349.071429][T15786] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 4353.740783][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4358.476769][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4362.573783][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4367.373777][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!