[ 4493.991393][T29215] gre: GRE over IPv4 demultiplexer driver
[ 4495.667763][T29238] ip_gre: GRE over IPv4 tunneling driver
[ 4547.412651][T29815] ip6_gre: GRE over IPv6 tunneling driver
[ 4568.824249][T30064] ping (30064) used greatest stack depth: 23440 bytes left
[ 4581.912657][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4587.609621][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4592.664525][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4598.169539][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!