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Date:   Mon, 30 Oct 2023 18:22:50 +0100
From:   Florian Westphal <fw@strlen.de>
To:     Florian Westphal <fw@strlen.de>
Cc:     Valentijn Sessink <valentijn@sessink.nl>, netfilter@vger.kernel.org
Subject: Re: arptables-nft and comments in nft output
Message-ID: <20231030172250.GC21160@breakpoint.cc>
References: <8108fd99-25f2-49a9-8ef8-18c2de253163@sessink.nl>
 <20231028100204.GA21160@breakpoint.cc>
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Florian Westphal <fw@strlen.de> wrote:
> Valentijn Sessink <valentijn@sessink.nl> wrote:
> > I'm using arptables (nft iptables version 1.8.7) with
> > arptables -A OUTPUT -d 10.21.22.129 -j mangle --mangle-ip-s 10.21.22.161
> > 
> > Now I'm a bit confused by the nft output:
> > 
> > table arp filter {
> > 	chain OUTPUT {
> > 		type filter hook output priority filter; policy accept;
> > 		arp htype 1 arp hlen 6 arp plen 4 arp daddr ip 10.21.22.129 counter
> > packets 1288 bytes 54096 # --mangle-ip-s 10.21.22.161	}
> > }
> > 
> > The nft wiki only says "In the case of some missing translation, you will
> > see a commented rule in nftables" - but it doesn't say what to do.
> > 
> > Now I'm confused. Does this mean that I cannot use "nft" to setup this very
> > rule? Should I use "arptables-nft" to set this rule? Or is there another
> > way?
> 
> It might just be a missing translation.

FWIW I've started to implement arptables-translate to provide the
needed translations.