[ 4317.247614][T20221] gre: GRE over IPv4 demultiplexor driver
[ 4319.420604][T20244] ip_gre: GRE over IPv4 tunneling driver
[ 4356.879336][T20590] ping (20590) used greatest stack depth: 22384 bytes left
[ 4382.227543][T20816] ip6_gre: GRE over IPv6 tunneling driver
[ 4425.316356][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4431.205233][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4436.900270][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4444.004261][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!