[ 2600.190388][T17623] gre: GRE over IPv4 demultiplexor driver
[ 2602.290491][T17646] ip_gre: GRE over IPv4 tunneling driver
[ 2662.583765][T18217] ip6_gre: GRE over IPv6 tunneling driver
[ 2704.594591][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2710.674587][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2715.666504][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2721.619515][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!