I have four Virtual Machines: A, B, C, D.
Machines connected by the following way through the Internal Network of Virtual Box A <-> C, B <-> C, D <-> C
Machine C - central node in this star network topology.
Machine D sending udp packets to A machine, but C must duplicate all udp traffic from D to B.
Machine C has three interfaces:
eth0 with IP 2000::ffff:705:a02/120
eth1 with IP 2000::ffff:705:b02/120
eth2 with IP 2000::ffff:705:c02/120
Machine A:
eth0 with IP 2000::ffff:705:a01/120
Machine B:
eth0 with IP 2000::ffff:705:b01/120
Machine C:
eth0 with IP 2000::ffff:705:c01/120
I've enabled forwarding in C and add next rule:
ip6tables -t mangle -A PREROUTING -d 2000::ffff:705:a01 -p udp -j TEE --gateway 2000::ffff:705:b01
But this rule doesn't really work (I'm sending udp datagrams by nc)
The strange thing, but for the IPv4 configuration absolutely the same actions work perfectly
