From b07e10139c88d6060e57ca52b2dc12b17b53ac82 Mon Sep 17 00:00:00 2001
From: Azat Bahawi <azat@bahawi.net>
Date: Sun, 21 May 2023 23:10:32 +0300
Subject: 2023-05-21

---
 nixosConfigurations/varda/default.nix | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'nixosConfigurations/varda/default.nix')

diff --git a/nixosConfigurations/varda/default.nix b/nixosConfigurations/varda/default.nix
index 2ff8993..230521e 100644
--- a/nixosConfigurations/varda/default.nix
+++ b/nixosConfigurations/varda/default.nix
@@ -22,6 +22,14 @@ with lib; {
       "virtio_pci"
       "virtio_scsi"
     ];
+
+    # https://github.com/NixOS/nixpkgs/issues/89025
+    # https://forum.netcup.de/administration-of-a-server-vserver/vserver-server-kvm-server/p67571-icmpv6-ra-ndisc-router-discovery-failed-to-add-default-route/#post67571
+    # https://superuser.com/questions/33196/how-to-disable-autoconfiguration-on-ipv6-in-linux
+    kernel.sysctl = {
+      "net.ipv6.conf.all.autoconf" = 0;
+      "net.ipv6.conf.all.accept_ra" = 0;
+    };
   };
 
   fileSystems = {
-- 
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