[ 1520.201333][ T8961] gre: GRE over IPv4 demultiplexer driver
[ 1520.747214][ T8984] ip_gre: GRE over IPv4 tunneling driver
[ 1537.605577][ T9557] ip6_gre: GRE over IPv6 tunneling driver
[ 1544.010721][ T9821] ping (9821) used greatest stack depth: 23232 bytes left
[ 1548.960417][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1551.136346][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1553.184336][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1555.232341][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!