[ 1511.851352][T25213] gre: GRE over IPv4 demultiplexer driver
[ 1512.366063][T25236] ip_gre: GRE over IPv4 tunneling driver
[ 1528.227214][T25816] ip6_gre: GRE over IPv6 tunneling driver
[ 1535.768997][T26159] ping (26159) used greatest stack depth: 23072 bytes left
[ 1538.610950][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1540.594925][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1542.450922][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1544.497937][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1567.630900][T27298] ping (27298) used greatest stack depth: 22928 bytes left
[ 1599.499847][T28429] ping (28429) used greatest stack depth: 22784 bytes left