[ 4627.809049][T24705] gre: GRE over IPv4 demultiplexor driver
[ 4629.939487][T24728] ip_gre: GRE over IPv4 tunneling driver
[ 4695.923390][T25300] ip6_gre: GRE over IPv6 tunneling driver
[ 4704.004666][T25361] ping (25361) used greatest stack depth: 23552 bytes left
[ 4742.552747][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4748.825682][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4754.200675][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4760.408692][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!