[ 1528.650265][T28395] gre: GRE over IPv4 demultiplexer driver
[ 1529.108699][T28418] ip_gre: GRE over IPv4 tunneling driver
[ 1544.795121][T28991] ip6_gre: GRE over IPv6 tunneling driver
[ 1550.429304][T26821] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1551.326278][T12814] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1555.085237][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1557.070240][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1558.925245][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1560.910241][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1568.105186][T29910] ping (29910) used greatest stack depth: 23600 bytes left
[ 1582.824653][T30425] ping (30425) used greatest stack depth: 23536 bytes left
[ 1612.596674][T31471] ping (31471) used greatest stack depth: 23424 bytes left