[ 4427.971350][T26086] gre: GRE over IPv4 demultiplexor driver
[ 4430.196456][T26110] ip_gre: GRE over IPv4 tunneling driver
[ 4457.061626][T26371] ping (26371) used greatest stack depth: 23920 bytes left
[ 4490.550056][T26690] ip6_gre: GRE over IPv6 tunneling driver
[ 4517.027708][T26939] ping (26939) used greatest stack depth: 23616 bytes left
[ 4532.457417][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4537.391182][T27127] ping (27127) used greatest stack depth: 23248 bytes left
[ 4538.345320][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4543.401295][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4549.417292][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!