[ 4320.133020][T19960] gre: GRE over IPv4 demultiplexor driver
[ 4322.198992][T19983] ip_gre: GRE over IPv4 tunneling driver
[ 4359.129553][T20336] ping (20336) used greatest stack depth: 22384 bytes left
[ 4384.147543][T20564] ip6_gre: GRE over IPv6 tunneling driver
[ 4416.246729][T20857] ping (20857) used greatest stack depth: 21976 bytes left
[ 4428.085473][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4434.294353][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4439.541373][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4445.813355][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!