[ 4388.019096][T29220] gre: GRE over IPv4 demultiplexer driver
[ 4389.608315][T29243] ip_gre: GRE over IPv4 tunneling driver
[ 4438.367287][T29819] ip6_gre: GRE over IPv6 tunneling driver
[ 4459.703413][T30068] ping (30068) used greatest stack depth: 23440 bytes left
[ 4460.119452][T18855] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 4472.663306][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4477.655374][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4481.943319][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4487.000294][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!