[ 4451.822676][T22513] gre: GRE over IPv4 demultiplexor driver
[ 4453.975967][T22536] ip_gre: GRE over IPv4 tunneling driver
[ 4515.531984][T23111] ip6_gre: GRE over IPv6 tunneling driver
[ 4558.196716][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4564.276690][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4569.397658][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4575.285632][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!