[ 3387.957832][T21535] gre: GRE over IPv4 demultiplexor driver
[ 3389.086401][T21558] ip_gre: GRE over IPv4 tunneling driver
[ 3424.052606][T22130] ip6_gre: GRE over IPv6 tunneling driver
[ 3438.939392][T22385] ping (22385) used greatest stack depth: 23296 bytes left
[ 3448.634532][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3452.347441][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3455.547444][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3459.322479][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!