[ 1544.234681][T28398] gre: GRE over IPv4 demultiplexer driver
[ 1544.701482][T28421] ip_gre: GRE over IPv4 tunneling driver
[ 1552.785365][T28768] ping (28768) used greatest stack depth: 22784 bytes left
[ 1561.436070][T28993] ip6_gre: GRE over IPv6 tunneling driver
[ 1572.502830][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1574.615797][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1576.534804][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1578.647797][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!