[ 4585.988652][T23251] gre: GRE over IPv4 demultiplexor driver
[ 4588.139346][T23274] ip_gre: GRE over IPv4 tunneling driver
[ 4651.345781][T23846] ip6_gre: GRE over IPv6 tunneling driver
[ 4679.778908][T24095] ping (24095) used greatest stack depth: 22128 bytes left
[ 4696.524465][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4702.860377][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4708.173354][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4714.444326][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!