[ 3201.531227][T28937] gre: GRE over IPv4 demultiplexor driver
[ 3202.836810][T28967] ip_gre: GRE over IPv4 tunneling driver
[ 3238.092479][T29540] ip6_gre: GRE over IPv6 tunneling driver
[ 3242.470626][T19802] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 3258.037524][T29884] ping (29884) used greatest stack depth: 23296 bytes left
[ 3262.245455][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3266.021476][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3269.350458][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3273.125470][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!