[ 3491.479756][T25527] gre: GRE over IPv4 demultiplexor driver
[ 3492.898403][T25550] ip_gre: GRE over IPv4 tunneling driver
[ 3533.677198][T26127] ip6_gre: GRE over IPv6 tunneling driver
[ 3563.292947][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3567.579786][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3571.675694][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3575.771771][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!