[ 3684.079037][T25952] gre: GRE over IPv4 demultiplexor driver
[ 3686.192425][T25976] ip_gre: GRE over IPv4 tunneling driver
[ 3746.437224][T26548] ip6_gre: GRE over IPv6 tunneling driver
[ 3788.990826][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3794.814760][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3799.870762][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3805.823773][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!