From 2bf18319c904894f1564ca122162967e216b35fb Mon Sep 17 00:00:00 2001
From: Jack O'Sullivan <jackos1998@gmail.com>
Date: Mon, 16 Mar 2026 15:12:46 +0000
Subject: [PATCH] nixos/routing-common: Fix keepalived link-local addresses

---
 nixos/boxes/home/routing-common/keepalived.nix | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/nixos/boxes/home/routing-common/keepalived.nix b/nixos/boxes/home/routing-common/keepalived.nix
index e1c4370..4a22c84 100644
--- a/nixos/boxes/home/routing-common/keepalived.nix
+++ b/nixos/boxes/home/routing-common/keepalived.nix
@@ -20,10 +20,7 @@ let
   };
 
   vlanIface = vlan: if vlan == "as211024" then vlan else "lan-${vlan}";
-  vrrpIPs = family: concatMap (vlan: (optional (family == "v6") {
-      addr = "fe80::1/64";
-      dev = vlanIface vlan;
-    }) ++ [
+  vrrpIPs = family: concatMap (vlan: [
     {
       addr = "${vips.${vlan}.${family}}/${toString (net.cidr.length prefixes.${vlan}.${family})}";
       dev = vlanIface vlan;
@@ -64,6 +61,9 @@ in
         v4 = mkVRRP "v4" 51;
         v6 = (mkVRRP "v6" 52) // {
           extraConfig = ''
+            virtual_ipaddress_excluded {
+              ${concatMapStringsSep "\n" (vlan: "fe80::1/64 dev ${vlanIface vlan}") (attrNames vips)}
+            }
             notify_master "${config.systemd.package}/bin/systemctl start radvd.service" root
             notify_backup "${config.systemd.package}/bin/systemctl stop radvd.service" root
           '';