[ 4331.046159][T29196] gre: GRE over IPv4 demultiplexer driver
[ 4332.683372][T29219] ip_gre: GRE over IPv4 tunneling driver
[ 4382.542455][T29791] ip6_gre: GRE over IPv6 tunneling driver
[ 4403.923110][T30041] ping (30041) used greatest stack depth: 23440 bytes left
[ 4416.851169][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4421.778087][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4426.066139][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4431.122100][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!