It might be included in one of the intervals, which is why grep doesn't see it. Try this: nft get element inet my_table badips { 198.199.104.80 } On Thu, Feb 8, 2024 at 5:22 PM Xavier B. <somenxavier@xxxxxxxxxx> wrote: > > Hi, > > I have an artix instance with nfttables there. I have several rules (attached file) but mainly I have a set of ip addresses I want to ban: > > table inet my_table { > > set badips { > type ipv4_addr > flags interval > auto-merge > elements = {1.0.147.18 } > } > > chain my_input { > ... > ip saddr @badips drop comment "[nftables] Block ban IP" > ... > } > ... > } > > Until now, when I add some new IP to my badips set, everything is fine, but today is not: > > # nft add element inet my_table badips { 198.199.104.80 } > # nft list ruleset | grep 198.199.104.80 > # > > As you can see "nft list ruleset | grep 198.199.104.80" produces no output, which means that this IP is not added in badips set. > > So, I suspect nft has a theoric limit size of number of elements of a set. Is it true? Or not? If it is, what limit is that? > > Thanks in advance, > Xavier