[ 2588.875450][T17620] gre: GRE over IPv4 demultiplexor driver
[ 2590.923246][T17643] ip_gre: GRE over IPv4 tunneling driver
[ 2652.772307][T18217] ip6_gre: GRE over IPv6 tunneling driver
[ 2694.120053][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2699.943886][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2704.807882][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2710.504903][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!