[ 1660.751896][ T8117] gre: GRE over IPv4 demultiplexer driver
[ 1661.245178][ T8140] ip_gre: GRE over IPv4 tunneling driver
[ 1678.139237][ T8713] ip6_gre: GRE over IPv6 tunneling driver
[ 1684.179021][ T8962] ping (8962) used greatest stack depth: 22784 bytes left
[ 1689.256830][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1691.368791][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1693.287795][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1695.399792][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!