[ 1693.171021][T11448] gre: GRE over IPv4 demultiplexer driver
[ 1693.602875][T11471] ip_gre: GRE over IPv4 tunneling driver
[ 1709.200235][T12042] ip6_gre: GRE over IPv6 tunneling driver
[ 1714.612786][T12292] ping (12292) used greatest stack depth: 22784 bytes left
[ 1719.477321][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1721.462272][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1723.318268][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1725.301292][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!