Answering the first question i think you may be looking for sets https://wiki.nftables.org/wiki-nftables/index.php/Sets As for the second one RFC3514 implementing that is a bad idea for a number of reasons which is why as far as I know nothing implements it, it's too easy for a bad actor to take advantage of. In fact it was actually an april fools joke RFC. There are a lot of those and some people confuse them as being legitimate but they are not. if you see an RFC with a publish date of April 1st any year don't take it seriously. AGAIN I CAN NOT STRESS THIS POINT ENOUGH THAT RFC (RFC3514 ) WAS WRITTEN AS AN APRIL FOOLS JOKE!!!!!. On Wed, Jun 7, 2023 at 8:12 AM Marek Küthe <m-k-mailling-list@xxxxxxx> wrote: > > Hello, > > I hope I am in the right place. I have two questions about nftables: > > 1) Is it possible to perform OR operations in nftables? For example > `ip6 saddr ::/128 OR ip saddr 127.0.0.1/8 accept;` As far as I > understand it, everything else is concatenated with AND. > > 2) I want to see how many IPv4 packets I can get with the Evil Bit > (RFC3514). Since there seems to be no native function for this in > nftables, I seem to have to use raw payload expression. So I have > set up the following: > > @th,6,1 & 0x80 = 0x80 \ > log prefix "[nftables] Evil bit: " counter reject; > > However, `Error: syntax error, unexpected '='` appears. What is the > reason for this? How can I formulate this expression correctly? > > I would really appreciate your answers! > > Greetings > Marek Küthe > > -- > Marek Küthe > m.k@xxxxxxx > er/ihm he/him
