Toke Høiland-Jørgensen 742924a076 nat64: Insert route and neighbour entry on setup/teardown ...

We insert a v4-via-v6 route on the interface to direct packets to the v4
subnet to the right interface, where it will be rewritten by the BPF
program. We also create a fake neighbour entry so the kernel won't do
neighbour resolution when sending the pre-rewrite packet. The egress BPF
program will use bpf_redirect_neigh() to do proper neighbour resolution for
the actual destination after rewriting the packet.

Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>

2021-10-04 17:13:00 +02:00

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