[ 1510.867690][T26825] gre: GRE over IPv4 demultiplexer driver
[ 1511.367493][T26848] ip_gre: GRE over IPv4 tunneling driver
[ 1527.889045][T27420] ip6_gre: GRE over IPv6 tunneling driver
[ 1533.768966][T27486] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1535.773757][T27776] ping (27776) used greatest stack depth: 23272 bytes left
[ 1538.654188][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1540.702193][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1542.557196][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1544.606192][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1553.278978][T28373] ip (28373) used greatest stack depth: 23176 bytes left