[ 3271.776215][T23682] gre: GRE over IPv4 demultiplexer driver
[ 3273.325463][T23705] ip_gre: GRE over IPv4 tunneling driver
[ 3291.526858][T23945] ip (23945) used greatest stack depth: 23552 bytes left
[ 3319.954413][T24278] ip6_gre: GRE over IPv6 tunneling driver
[ 3351.753075][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3356.424039][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3360.584033][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3365.256021][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!