Florian Zumbiehl <florz@xxxxxxxx> wrote: > I stumbled upon this bug in the Debian buster backports version of nftables > (0.9.2-1~bpo10+1), the git commit log doesn't look like this has been fixed > since, so here it is: > > | # nft add rule foo bar udp dport 1-1 > | Error: Range has zero or negative size > | add rule foo bar udp dport 1-1 I'd guess this is intentional and nft assumes user meant something else such as 1-2 or 1-11. We could autotranslate this to "dport 1" but I'm not sure its right.