[ 3366.578093][T22165] gre: GRE over IPv4 demultiplexor driver
[ 3367.727259][T22188] ip_gre: GRE over IPv4 tunneling driver
[ 3403.632160][T22759] ip6_gre: GRE over IPv6 tunneling driver
[ 3424.089506][T19303] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 3427.863581][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3431.575588][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3434.839575][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3438.614587][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3494.274135][T24237] ping (24237) used greatest stack depth: 22688 bytes left