[ 4364.418644][T29224] gre: GRE over IPv4 demultiplexer driver
[ 4366.332188][T29247] ip_gre: GRE over IPv4 tunneling driver
[ 4417.991548][T29823] ip6_gre: GRE over IPv6 tunneling driver
[ 4439.948616][T30073] ping (30073) used greatest stack depth: 23440 bytes left
[ 4453.212077][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4458.268020][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4462.619972][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4467.675969][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!