[ 4636.912384][T23206] gre: GRE over IPv4 demultiplexor driver
[ 4639.113924][T23229] ip_gre: GRE over IPv4 tunneling driver
[ 4705.299040][T23802] ip6_gre: GRE over IPv6 tunneling driver
[ 4752.484177][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4758.884079][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4764.452113][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4770.916076][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!