[ 4427.108840][T25895] gre: GRE over IPv4 demultiplexor driver
[ 4429.124392][T25918] ip_gre: GRE over IPv4 tunneling driver
[ 4489.911527][T26490] ip6_gre: GRE over IPv6 tunneling driver
[ 4531.998422][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4537.886338][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4542.750409][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4548.703322][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!