From 67794c53a389a53aec3fe3146d86639637a34a6e Mon Sep 17 00:00:00 2001
From: Baptiste Jonglez <git@bitsofnetworks.org>
Date: Sun, 2 Jun 2024 21:35:36 +0200
Subject: [PATCH] Disable DHCPv6 and DHCPv6-PD in all cases

---
 nix/deuxfleurs.nix | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/nix/deuxfleurs.nix b/nix/deuxfleurs.nix
index 7b9065e..f9fd068 100644
--- a/nix/deuxfleurs.nix
+++ b/nix/deuxfleurs.nix
@@ -204,6 +204,13 @@ in
         # link-local addresses
         networkConfig.IPv6AcceptRA = mkIf noRA false;
         networkConfig.LinkLocalAddressing = mkIf noRA "no";
+
+        # By default, systemd-networkd may try to use DHCPv6 depending on RA flags.
+        # Disable DHCPv6 client and IPv6 Prefix Delegation in all cases.
+        ipv6AcceptRAConfig.DHCPv6Client = false;
+        dhcpV6Config.UseAddress = false;
+        dhcpV6Config.UseDelegatedPrefix = false;
+
       };
 
     # Configure Unbound as a central DNS server for everything