[ 2176.547487][T17620] gre: GRE over IPv4 demultiplexor driver
[ 2178.703458][T17650] ip_gre: GRE over IPv4 tunneling driver
[ 2234.134075][T18221] ip6_gre: GRE over IPv6 tunneling driver
[ 2260.989042][T18470] ping (18470) used greatest stack depth: 21904 bytes left
[ 2275.310648][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2280.239587][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2284.462583][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2289.390713][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!