[ 4402.263367][T29146] gre: GRE over IPv4 demultiplexer driver
[ 4403.973180][T29169] ip_gre: GRE over IPv4 tunneling driver
[ 4454.852229][T29740] ip6_gre: GRE over IPv6 tunneling driver
[ 4484.320136][T30091] ping (30091) used greatest stack depth: 23440 bytes left
[ 4489.586994][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4494.706867][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4499.122875][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4504.435844][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!