[ 1299.615949][T28211] gre: GRE over IPv4 demultiplexer driver
[ 1300.060754][T28234] ip_gre: GRE over IPv4 tunneling driver
[ 1316.096459][T28812] ip6_gre: GRE over IPv6 tunneling driver
[ 1323.597105][T29155] ping (29155) used greatest stack depth: 22928 bytes left
[ 1326.453491][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1328.502493][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1330.357515][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1332.597481][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!