[ 4178.806093][T21216] gre: GRE over IPv4 demultiplexor driver
[ 4180.379252][T21240] ip_gre: GRE over IPv4 tunneling driver
[ 4227.191240][T21815] ip6_gre: GRE over IPv6 tunneling driver
[ 4247.089352][T22064] ping (22064) used greatest stack depth: 22672 bytes left
[ 4247.581901][  T780] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 4259.357756][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4264.093774][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4268.253763][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4273.053787][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!