[ 4664.546323][T25516] gre: GRE over IPv4 demultiplexor driver
[ 4666.848549][T25539] ip_gre: GRE over IPv4 tunneling driver
[ 4731.477532][T26111] ip6_gre: GRE over IPv6 tunneling driver
[ 4759.587585][T26361] ping (26361) used greatest stack depth: 23296 bytes left
[ 4776.099674][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4782.180612][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4787.428608][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4793.699681][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!