From 0e3921d126f946702f2adfca1eb017e40689e788 Mon Sep 17 00:00:00 2001
From: Emery Hemingway <ehmry@posteo.net>
Date: Thu, 13 Jan 2022 20:23:19 +0100
Subject: [PATCH] Yggdrasil: enable IPv6 forwarding

---
 nix/nixos-module/container/yggdrasil.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/nix/nixos-module/container/yggdrasil.nix b/nix/nixos-module/container/yggdrasil.nix
index 3af5924..28e1134 100644
--- a/nix/nixos-module/container/yggdrasil.nix
+++ b/nix/nixos-module/container/yggdrasil.nix
@@ -10,6 +10,9 @@ lib.mkIf config.site.hosts.${hostName}.services.yggdrasil.enable {
     fi
   '';
 
+  boot.kernel.sysctl."net.ipv6.conf.all.forwarding" = 1;
+  # Forward traffic under the prefix.
+
   services.yggdrasil = {
     enable = true;
     persistentKeys = true;