[ 4279.189146][T21346] gre: GRE over IPv4 demultiplexor driver
[ 4280.832201][T21369] ip_gre: GRE over IPv4 tunneling driver
[ 4329.497435][T21943] ip6_gre: GRE over IPv6 tunneling driver
[ 4346.146200][T22142] ping (22142) used greatest stack depth: 23536 bytes left
[ 4362.600746][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4367.337667][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4371.432688][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4376.104760][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!