[ 4394.964599][T28673] gre: GRE over IPv4 demultiplexer driver
[ 4396.603302][T28696] ip_gre: GRE over IPv4 tunneling driver
[ 4445.486590][T29267] ip6_gre: GRE over IPv6 tunneling driver
[ 4479.388690][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4484.381629][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4488.604648][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4493.532699][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!