[ 4431.065570][T22399] gre: GRE over IPv4 demultiplexor driver
[ 4433.123492][T22423] ip_gre: GRE over IPv4 tunneling driver
[ 4494.474276][T22997] ip6_gre: GRE over IPv6 tunneling driver
[ 4536.948492][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4542.835427][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4547.955468][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4554.035428][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!