From 57ca79dc02e906dbf66f5750f888eab83b624be6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sandro=20J=C3=A4ckel?= <sandro.jaeckel@gmail.com>
Date: Thu, 18 Apr 2024 19:49:21 +0200
Subject: [PATCH] Set ddns-replace-client-name

---
 nix/nixos-module/container/dhcp-server.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/nix/nixos-module/container/dhcp-server.nix b/nix/nixos-module/container/dhcp-server.nix
index 8d40ddf..6360356 100644
--- a/nix/nixos-module/container/dhcp-server.nix
+++ b/nix/nixos-module/container/dhcp-server.nix
@@ -29,6 +29,7 @@ in
       # TODO: use with kea >= 2.5.0
       # ddns-conflict-resolution-mode = "check-exists-with-dhcid";
       ddns-use-conflict-resolution = false;
+      ddns-replace-client-name = "when-not-present";
       expired-leases-processing.hold-reclaimed-time = builtins.foldl' lib.max
         3600 (concatMapDhcpNets (net: { dhcp, ... }: dhcp.max-time));