Re: [PATCH] ipvs: skip ipvs snat processing when packet dst is not vip

Florian Westphal <[email protected]> Tue, 20 May 2025 15:44:37 +0200
Newsgroups org.kernel.vger.lvs-devel,org.kernel.vger.netdev
Message-ID <[email protected]>
Julian Anastasov <[email protected]> wrote:
> 	But the following packet is different from your
> initial posting. Why client connects directly to the real server?
> Is it allowed to have two conntracks with equal reply tuple
> 192.168.99.4:8080 -> 192.168.99.6:15280 and should we support
> such kind of setups?

I don't even see how it would work, if you allow

C1 -> S
C2 -> S

... in conntrack and you receive packet from S, does that need to
go to C1 or C2?

Such duplicate CT entries are free'd (refused) at nf_confirm (
conntrack table insertion) time.