[ 2918.899432][T23659] gre: GRE over IPv4 demultiplexer driver
[ 2920.543242][T23682] ip_gre: GRE over IPv4 tunneling driver
[ 2949.053919][T24035] ping (24035) used greatest stack depth: 23360 bytes left
[ 2969.445210][T24261] ip6_gre: GRE over IPv6 tunneling driver
[ 3002.995575][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3007.922483][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3012.147476][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3017.010477][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!