[ 3182.155431][T23667] gre: GRE over IPv4 demultiplexer driver
[ 3183.788361][T23690] ip_gre: GRE over IPv4 tunneling driver
[ 3232.479581][T24262] ip6_gre: GRE over IPv6 tunneling driver
[ 3257.145959][T12085] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 3266.168046][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3271.032011][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3275.192089][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3280.056028][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!