From 41e2604483babe9e70429887ff5293aaa8bdb1bb Mon Sep 17 00:00:00 2001
From: Jared Baur <jaredbaur@fastmail.com>
Date: Tue, 29 Mar 2022 07:58:42 -0700
Subject: nixos/dhcpd6: Use fixed-address6 for dhcpd6 address reservations

---
 nixos/modules/services/networking/dhcpd.nix | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/nixos/modules/services/networking/dhcpd.nix b/nixos/modules/services/networking/dhcpd.nix
index 3c4c0069dfd0..49950efc0a1b 100644
--- a/nixos/modules/services/networking/dhcpd.nix
+++ b/nixos/modules/services/networking/dhcpd.nix
@@ -7,7 +7,7 @@ let
   cfg4 = config.services.dhcpd4;
   cfg6 = config.services.dhcpd6;
 
-  writeConfig = cfg: pkgs.writeText "dhcpd.conf"
+  writeConfig = postfix: cfg: pkgs.writeText "dhcpd.conf"
     ''
       default-lease-time 600;
       max-lease-time 7200;
@@ -21,7 +21,9 @@ let
           (machine: ''
             host ${machine.hostName} {
               hardware ethernet ${machine.ethernetAddress};
-              fixed-address ${machine.ipAddress};
+              fixed-address${
+                optionalString (postfix == "6") postfix
+              } ${machine.ipAddress};
             }
           '')
           cfg.machines
@@ -33,7 +35,7 @@ let
       configFile =
         if cfg.configFile != null
           then cfg.configFile
-          else writeConfig cfg;
+          else writeConfig postfix cfg;
       leaseFile = "/var/lib/dhcpd${postfix}/dhcpd.leases";
       args = [
         "@${pkgs.dhcp}/sbin/dhcpd" "dhcpd${postfix}" "-${postfix}"
-- 
cgit 1.4.1