[ 1695.478531][T12376] gre: GRE over IPv4 demultiplexer driver
[ 1695.957726][T12399] ip_gre: GRE over IPv4 tunneling driver
[ 1712.237983][T12970] ip6_gre: GRE over IPv6 tunneling driver
[ 1716.879318][T13170] ping (13170) used greatest stack depth: 23632 bytes left
[ 1720.154021][T13318] ping (13318) used greatest stack depth: 23232 bytes left
[ 1720.280009][   T24] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1723.009839][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1725.058837][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1726.977839][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1729.089875][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!