[ 4719.997733][T23274] gre: GRE over IPv4 demultiplexor driver
[ 4722.265967][T23298] ip_gre: GRE over IPv4 tunneling driver
[ 4787.163626][T23870] ip6_gre: GRE over IPv6 tunneling driver
[ 4809.699541][T24069] ping (24069) used greatest stack depth: 22400 bytes left
[ 4831.673492][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4838.010398][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4843.385402][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4849.721532][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!