[ 1641.069615][T13878] gre: GRE over IPv4 demultiplexer driver
[ 1641.493285][T13901] ip_gre: GRE over IPv4 tunneling driver
[ 1648.835052][T14257] ping (14257) used greatest stack depth: 22800 bytes left
[ 1656.986788][T14484] ip6_gre: GRE over IPv6 tunneling driver
[ 1667.077281][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1668.998249][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1670.854251][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1672.837271][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!