[ 3398.387300][T31372] gre: GRE over IPv4 demultiplexor driver
[ 3399.555560][T31396] ip_gre: GRE over IPv4 tunneling driver
[ 3434.791440][T31969] ip6_gre: GRE over IPv6 tunneling driver
[ 3449.354611][T32220] ping (32220) used greatest stack depth: 23296 bytes left
[ 3458.979584][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3462.691487][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3465.956487][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3469.667490][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!