[ 3938.976540][T19833] gre: GRE over IPv4 demultiplexor driver
[ 3941.092919][T19856] ip_gre: GRE over IPv4 tunneling driver
[ 4003.696242][T20427] ip6_gre: GRE over IPv6 tunneling driver
[ 4046.007789][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4052.023700][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4057.014685][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4062.966678][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!