From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from firstgate.proxmox.com (firstgate.proxmox.com [IPv6:2a01:7e0:0:424::9]) by lore.proxmox.com (Postfix) with ESMTPS id 5F2F31FF398 for ; Mon, 13 May 2024 13:34:59 +0200 (CEST) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id 5680214496; Mon, 13 May 2024 13:35:08 +0200 (CEST) From: Stefan Hanreich To: pve-devel@lists.proxmox.com Date: Mon, 13 May 2024 13:35:04 +0200 Message-Id: <20240513113504.203468-1-s.hanreich@proxmox.com> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 X-SPAM-LEVEL: Spam detection results: 0 AWL -0.268 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% DMARC_MISSING 0.1 Missing DMARC policy KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment KAM_LAZY_DOMAIN_SECURITY 1 Sending domain does not have any anti-forgery methods RDNS_NONE 0.793 Delivered to internal network by a host with no rDNS SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_NONE 0.001 SPF: sender does not publish an SPF Record Subject: [pve-devel] [PATCH proxmox-firewall 1/1] firewall: properly reject ipv6 traffic X-BeenThere: pve-devel@lists.proxmox.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Proxmox VE development discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Proxmox VE development discussion Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: pve-devel-bounces@lists.proxmox.com Sender: "pve-devel" ICMPv6 has different message types for rejecting traffic. With ICMP we used host-prohibited as rejection type, which doesn't exist in ICMPv6. Add an additional rule for IPv6, so it uses admin-prohibited. Signed-off-by: Stefan Hanreich --- proxmox-firewall/resources/proxmox-firewall.nft | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/proxmox-firewall/resources/proxmox-firewall.nft b/proxmox-firewall/resources/proxmox-firewall.nft index f36bf3b..0a220bf 100644 --- a/proxmox-firewall/resources/proxmox-firewall.nft +++ b/proxmox-firewall/resources/proxmox-firewall.nft @@ -75,8 +75,9 @@ table inet proxmox-firewall { ip saddr 224.0.0.0/4 drop meta l4proto tcp reject with tcp reset - meta l4proto icmp reject with icmp type port-unreachable + meta l4proto icmp reject with icmpx type port-unreachable reject with icmp type host-prohibited + reject with icmpv6 type admin-prohibited } set v4-dc/management { @@ -289,8 +290,9 @@ table bridge proxmox-firewall-guests { ip saddr 224.0.0.0/4 drop meta l4proto tcp reject with tcp reset - meta l4proto icmp reject with icmp type port-unreachable + meta l4proto icmp reject with icmpx type port-unreachable reject with icmp type host-prohibited + reject with icmpv6 type admin-prohibited } chain after-vm-in { -- 2.39.2 _______________________________________________ pve-devel mailing list pve-devel@lists.proxmox.com https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel