[ 1570.289688][ T1349] gre: GRE over IPv4 demultiplexer driver
[ 1570.782424][ T1372] ip_gre: GRE over IPv4 tunneling driver
[ 1586.608483][ T1944] ip6_gre: GRE over IPv6 tunneling driver
[ 1594.309302][ T2288] ping (2288) used greatest stack depth: 21984 bytes left
[ 1597.190255][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1599.238226][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1601.158218][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1603.206222][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!