Shyam Saini <mayhs11saini@xxxxxxxxx> wrote:
> Add translation for cluster to nft
>
> $ sudo iptables-translate -A PREROUTING -t mangle -i eth1 -m cluster --cluster-total-nodes 2 --cluster-local-node 1 --cluster-hash-seed
> 0xdeadbeef -j MARK --set-mark 0xffff
>
> nft add rule ip mangle PREROUTING iifname eth1 ct state {new,established, related, untracked} ct direction original mark set jhash ip saddr mod 2 seed 0xdeadbeef offset 1 counter meta mark set 0xffff
Can you explain why ct expression is needed in this way?
afaics translation would be (untested):
nft add rule ip mangle PREROUTING iifname eth1 mark set jhash ct saddr mod 2 seed 0xdeadbeef offset 1 counter meta mark set 0xffff fib saddr type multicast meta pkttype set host
we might need to implement "ct master-saddr" to deal with ct->master use
in xt_cluster as well, but we could do that later as a followup.
fib saddr type is needed to not set real mutlicast traffic to unicast
type and only catch l3-unicast-in-l2-multicast.
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