[ 4484.495065][T26073] gre: GRE over IPv4 demultiplexor driver
[ 4486.480385][T26096] ip_gre: GRE over IPv4 tunneling driver
[ 4548.083178][T26668] ip6_gre: GRE over IPv6 tunneling driver
[ 4574.769824][T26918] ping (26918) used greatest stack depth: 23360 bytes left
[ 4590.736524][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4596.687455][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4601.679478][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4607.823450][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!