[ 3170.450320][T28960] gre: GRE over IPv4 demultiplexor driver
[ 3171.635307][T28983] ip_gre: GRE over IPv4 tunneling driver
[ 3207.965598][T29554] ip6_gre: GRE over IPv6 tunneling driver
[ 3222.945576][T29806] ping (29806) used greatest stack depth: 23360 bytes left
[ 3232.669521][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3236.444455][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3239.965450][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3243.804467][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!