[ 3191.021954][T23668] gre: GRE over IPv4 demultiplexer driver
[ 3192.619518][T23691] ip_gre: GRE over IPv4 tunneling driver
[ 3241.292960][T24263] ip6_gre: GRE over IPv6 tunneling driver
[ 3262.393347][T24512] ping (24512) used greatest stack depth: 23552 bytes left
[ 3275.229823][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3280.221725][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3284.446674][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3289.310696][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!