[ 4342.528059][T29205] gre: GRE over IPv4 demultiplexer driver
[ 4344.233666][T29229] ip_gre: GRE over IPv4 tunneling driver
[ 4395.045370][T29800] ip6_gre: GRE over IPv6 tunneling driver
[ 4416.352768][T30051] ping (30051) used greatest stack depth: 23040 bytes left
[ 4429.542074][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4435.750789][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4440.870767][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4446.630733][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!