[ 3557.987130][T27932] gre: GRE over IPv4 demultiplexor driver
[ 3559.581948][T27955] ip_gre: GRE over IPv4 tunneling driver
[ 3607.117123][T28527] ip6_gre: GRE over IPv6 tunneling driver
[ 3623.304501][T28726] ping (28726) used greatest stack depth: 23536 bytes left
[ 3623.786625][T27171] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 3635.048572][T27171] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 3639.656451][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3644.392486][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3648.489462][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3653.352517][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!