[ 4405.989002][T29157] gre: GRE over IPv4 demultiplexer driver
[ 4408.006289][T29187] ip_gre: GRE over IPv4 tunneling driver
[ 4459.381994][T29759] ip6_gre: GRE over IPv6 tunneling driver
[ 4480.787647][T30008] ping (30008) used greatest stack depth: 22784 bytes left
[ 4494.177914][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4499.233829][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4503.457843][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4508.450815][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!