[ 4231.275699][T29182] gre: GRE over IPv4 demultiplexer driver
[ 4232.884715][T29205] ip_gre: GRE over IPv4 tunneling driver
[ 4281.159969][T29786] ip6_gre: GRE over IPv6 tunneling driver
[ 4309.294621][T30130] ping (30130) used greatest stack depth: 23440 bytes left
[ 4314.355456][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4319.155370][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4323.315349][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4328.115415][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!