From: Pablo Neira Ayuso <pablo@netfilter.org>
To: ѽ҉ᶬḳ℠ <vtol@gmx.net>
Cc: "netfilter@vger.kernel.org" <netfilter@vger.kernel.org>
Subject: Re: [nftables] granular rule for combined tcp & udp sports?
Date: Tue, 6 Oct 2020 10:31:50 +0200 [thread overview]
Message-ID: <20201006083150.GA14996@salvia> (raw)
In-Reply-To: <47b2582c-1f1e-4761-9be3-22018d7c87a2@gmx.net>
On Mon, Oct 05, 2020 at 12:56:00PM +0000, ѽ҉ᶬḳ℠ wrote:
> I am trying to get a granular logging rule going, combining tcp and udp
> sports for ip6 saddr but somehow failing:
>
>
> tcp sport != { 80, 443, 993, 5228 } udp sport != 19302 ip6 saddr @g_6 log
> flags all prefix "G_C :" continue
>
> -> Error: conflicting protocols specified: tcp vs. udp
I suggest you express things is less convoluted ways, ie. positive
logic and default action to drop in your ruleset.
nft add rule ip6 x y meta l4proto . th dport { tcp . 80, tcp . 443, tcp . 993, tcp . 5228, udp . 19302 } ip6 saddr @y accept
You can set default policy in the chain to drop.
next prev parent reply other threads:[~2020-10-06 8:31 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-05 12:56 [nftables] granular rule for combined tcp & udp sports? ѽ҉ᶬḳ℠
[not found] ` <CABeHSrYi=MT8pD6nsRaUK7u56UvO-E7qh1Kmo0=YU386AE8aXw@mail.gmail.com>
2020-10-06 6:49 ` ѽ҉ᶬḳ℠
2020-10-09 6:23 ` Eliezer Croitor
2020-10-06 8:31 ` Pablo Neira Ayuso [this message]
2020-10-06 8:54 ` ѽ҉ᶬḳ℠
2020-10-06 9:04 ` Pablo Neira Ayuso
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