[ 3449.505778][T23951] gre: GRE over IPv4 demultiplexor driver
[ 3450.784997][T23974] ip_gre: GRE over IPv4 tunneling driver
[ 3489.205288][T24552] ip6_gre: GRE over IPv6 tunneling driver
[ 3504.737872][T24801] ping (24801) used greatest stack depth: 21792 bytes left
[ 3515.321799][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3519.417708][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3522.873717][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3526.649700][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!