[ 2149.191085][T17621] gre: GRE over IPv4 demultiplexor driver
[ 2151.154359][T17644] ip_gre: GRE over IPv4 tunneling driver
[ 2204.497144][T18215] ip6_gre: GRE over IPv6 tunneling driver
[ 2235.915454][T18558] ping (18558) used greatest stack depth: 22096 bytes left
[ 2241.195123][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2246.251027][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2250.603012][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2255.723008][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!