[ 1591.483734][ T2384] gre: GRE over IPv4 demultiplexer driver
[ 1591.975063][ T2407] ip_gre: GRE over IPv4 tunneling driver
[ 1608.486637][ T2979] ip6_gre: GRE over IPv6 tunneling driver
[ 1615.487901][T19720] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1616.492944][ T3324] ping (3324) used greatest stack depth: 23152 bytes left
[ 1619.359843][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1621.471836][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1623.390841][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1625.503831][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!