[ 3209.627551][T22572] gre: GRE over IPv4 demultiplexor driver
[ 3211.800011][T22596] ip_gre: GRE over IPv4 tunneling driver
[ 3274.479124][T23170] ip6_gre: GRE over IPv6 tunneling driver
[ 3301.291618][T23419] ping (23419) used greatest stack depth: 21760 bytes left
[ 3316.868995][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3322.692909][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3327.620923][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3333.509908][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!