[ 2631.811604][T19286] gre: GRE over IPv4 demultiplexor driver
[ 2633.632030][T19309] ip_gre: GRE over IPv4 tunneling driver
[ 2687.692427][T19881] ip6_gre: GRE over IPv6 tunneling driver
[ 2711.668360][T20130] ping (20130) used greatest stack depth: 21888 bytes left
[ 2725.806002][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2731.053936][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2735.469901][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2740.653903][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!