[ 4434.087376][T22409] gre: GRE over IPv4 demultiplexor driver
[ 4436.180373][T22432] ip_gre: GRE over IPv4 tunneling driver
[ 4498.041101][T23004] ip6_gre: GRE over IPv6 tunneling driver
[ 4541.745500][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4547.633407][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4552.625410][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4558.449372][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!