[ 3982.708963][T24674] gre: GRE over IPv4 demultiplexor driver
[ 3984.684065][T24698] ip_gre: GRE over IPv4 tunneling driver
[ 4012.802867][T24952] ping (24952) used greatest stack depth: 23184 bytes left
[ 4047.816831][T25272] ip6_gre: GRE over IPv6 tunneling driver
[ 4090.804481][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4096.884429][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4102.068332][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4108.404369][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!