[ 4665.656160][T25706] gre: GRE over IPv4 demultiplexor driver
[ 4667.826476][T25729] ip_gre: GRE over IPv4 tunneling driver
[ 4734.206041][T26303] ip6_gre: GRE over IPv6 tunneling driver
[ 4762.794824][T26552] ping (26552) used greatest stack depth: 23584 bytes left
[ 4780.022469][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4786.357372][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4791.605389][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4797.877397][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!