[ 4443.021508][T20526] gre: GRE over IPv4 demultiplexor driver
[ 4445.097654][T20549] ip_gre: GRE over IPv4 tunneling driver
[ 4506.810809][T21121] ip6_gre: GRE over IPv6 tunneling driver
[ 4550.690055][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4556.706029][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4561.825979][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4568.033977][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!