diff --git a/proxmox/base.yaml b/proxmox/base.yaml
index 6c4d18b..e1240f9 100644
--- a/proxmox/base.yaml
+++ b/proxmox/base.yaml
@@ -72,6 +72,13 @@
           options vhost max_mem_regions=512
         dest: /etc/modprobe.d/vhost.conf
 
+    - name: sysctl.conf UNKNOWN CONFIG DRIFT #TODO: was in /etc/sysctl.conf on all, including new nodes (not present in upstream deb packages), including it just in case. This needs docs on what it is used for / needed by.
+      ansible.builtin.copy:
+        content: |
+          net.ipv4.ip_forward=1
+          net.ipv6.conf.all.forwarding=1
+        dest: /etc/sysctl.d/99-k-space.conf
+
 - name: PVE admin tooling
   hosts: proxmox
   tasks: