[ 3249.270973][T20534] gre: GRE over IPv4 demultiplexer driver
[ 3250.892766][T20557] ip_gre: GRE over IPv4 tunneling driver
[ 3298.782165][T21135] ip6_gre: GRE over IPv6 tunneling driver
[ 3319.018548][T21384] ping (21384) used greatest stack depth: 23464 bytes left
[ 3331.448570][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3336.183503][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3340.408544][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3345.335569][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!