[ 1603.817605][ T2381] gre: GRE over IPv4 demultiplexer driver
[ 1604.322691][ T2405] ip_gre: GRE over IPv4 tunneling driver
[ 1621.289976][ T2990] ip6_gre: GRE over IPv6 tunneling driver
[ 1628.345570][ T3287] ping (3287) used greatest stack depth: 22928 bytes left
[ 1632.474423][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1634.586389][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1636.506383][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1638.618397][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!