[ 4542.709740][T21603] gre: GRE over IPv4 demultiplexer driver
[ 4544.414813][T21626] ip_gre: GRE over IPv4 tunneling driver
[ 4579.466288][T22046] ip (22046) used greatest stack depth: 23392 bytes left
[ 4594.868603][T22199] ip6_gre: GRE over IPv6 tunneling driver
[ 4629.679457][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4634.735383][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4639.087379][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4644.207344][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!