[ 1399.277918][ T3976] gre: GRE over IPv4 demultiplexer driver
[ 1399.710861][ T3999] ip_gre: GRE over IPv4 tunneling driver
[ 1405.093532][ T4253] ping (4253) used greatest stack depth: 22936 bytes left
[ 1415.117555][ T4573] ip6_gre: GRE over IPv6 tunneling driver
[ 1425.315737][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1427.299703][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1429.154697][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1431.138727][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!