[ 3374.691467][T31407] gre: GRE over IPv4 demultiplexor driver
[ 3375.877457][T31431] ip_gre: GRE over IPv4 tunneling driver
[ 3387.544970][T31634] ping (31634) used greatest stack depth: 22928 bytes left
[ 3410.961206][T32004] ip6_gre: GRE over IPv6 tunneling driver
[ 3434.794639][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3438.506532][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3441.705547][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3445.418544][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!