[ 3198.319031][T23670] gre: GRE over IPv4 demultiplexer driver
[ 3199.956452][T23693] ip_gre: GRE over IPv4 tunneling driver
[ 3248.745335][T24264] ip6_gre: GRE over IPv6 tunneling driver
[ 3269.727531][T24513] ping (24513) used greatest stack depth: 23648 bytes left
[ 3282.836791][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3287.956745][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3292.309745][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3297.493741][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!