From: Stefan Hanreich <s.hanreich@proxmox.com>
To: pve-devel@lists.proxmox.com
Subject: [pve-devel] [PATCH proxmox-firewall 1/1] firewall: properly reject ipv6 traffic
Date: Mon, 13 May 2024 13:35:04 +0200 [thread overview]
Message-ID: <20240513113504.203468-1-s.hanreich@proxmox.com> (raw)
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 <s.hanreich@proxmox.com>
---
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
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next reply other threads:[~2024-05-13 11:34 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-13 11:35 Stefan Hanreich [this message]
2024-05-13 12:15 ` Stefan Hanreich
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