[ 1397.032478][ T1680] gre: GRE over IPv4 demultiplexer driver
[ 1397.519257][ T1703] ip_gre: GRE over IPv4 tunneling driver
[ 1413.635741][ T2275] ip6_gre: GRE over IPv6 tunneling driver
[ 1419.292361][ T2525] ping (2525) used greatest stack depth: 22640 bytes left
[ 1424.211380][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1426.259353][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1428.114343][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1430.162357][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!