Jesper Dangaard Brouer <[email protected]> writes:

> Make it clear that this XDP program depend on the network
> stack to do the ARP resolution.  This is connected with the
> BPF_FIB_LKUP_RET_NO_NEIGH return code from bpf_fib_lookup().
>
> Another common mistake (seen via XDP-tutorial) is that users
> don't realize that sysctl net.ipv{4,6}.conf.all.forwarding
> setting is honored by bpf_fib_lookup.
>
> Reported-by: Anton Protopopov <[email protected]>
> Signed-off-by: Jesper Dangaard Brouer <[email protected]>
> Reviewed-by: David Ahern <[email protected]>
> Acked-by: Yonghong Song <[email protected]>

Reviewed-by: Toke Høiland-Jørgensen <[email protected]>

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