[ 4450.871808][T28249] gre: GRE over IPv4 demultiplexer driver
[ 4452.625840][T28272] ip_gre: GRE over IPv4 tunneling driver
[ 4503.576706][T28845] ip6_gre: GRE over IPv6 tunneling driver
[ 4537.951800][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4542.814736][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4547.038712][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4551.966720][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4634.221860][T30325] ping (30325) used greatest stack depth: 23536 bytes left
[ 4726.089750][T31361] ping (31361) used greatest stack depth: 23280 bytes left