[ 1400.603534][ T2132] gre: GRE over IPv4 demultiplexer driver
[ 1401.062341][ T2155] ip_gre: GRE over IPv4 tunneling driver
[ 1406.397542][ T2409] ping (2409) used greatest stack depth: 23680 bytes left
[ 1416.443103][ T2729] ip6_gre: GRE over IPv6 tunneling driver
[ 1421.878957][ T2978] ping (2978) used greatest stack depth: 23328 bytes left
[ 1422.896560][ T2214] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1426.672480][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1428.655480][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1430.511476][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1432.560875][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!