[ 1534.721913][T28408] gre: GRE over IPv4 demultiplexer driver
[ 1535.183553][T28435] ip_gre: GRE over IPv4 tunneling driver
[ 1550.852497][T29006] ip6_gre: GRE over IPv6 tunneling driver
[ 1555.266096][T29205] ping (29205) used greatest stack depth: 22832 bytes left
[ 1561.237550][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1563.285506][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1565.141501][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1567.190503][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!