[ 3224.973013][T23666] gre: GRE over IPv4 demultiplexer driver
[ 3226.615221][T23689] ip_gre: GRE over IPv4 tunneling driver
[ 3274.802502][T24269] ip6_gre: GRE over IPv6 tunneling driver
[ 3302.935052][T24612] ping (24612) used greatest stack depth: 23552 bytes left
[ 3308.094117][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3312.959021][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3317.119042][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3321.982075][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!