[ 4611.089318][T30585] gre: GRE over IPv4 demultiplexer driver
[ 4612.869017][T30608] ip_gre: GRE over IPv4 tunneling driver
[ 4663.698386][T31180] ip6_gre: GRE over IPv6 tunneling driver
[ 4696.260707][T31523] ping (31523) used greatest stack depth: 23440 bytes left
[ 4701.729250][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4706.977276][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4711.521172][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4716.578231][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!