From 6c817624bca3bb421f66ab4cecbcaa292053f937 Mon Sep 17 00:00:00 2001
From: Timotej Lazar <timotej.lazar@fri.uni-lj.si>
Date: Sat, 21 Sep 2024 22:41:36 +0200
Subject: [PATCH] alpine: disable IPv6 automatic addresses

So we have predictable addresses if we ever want to firewall
individual hosts.
---
 roles/alpine/templates/interfaces.j2 | 1 +
 1 file changed, 1 insertion(+)

diff --git a/roles/alpine/templates/interfaces.j2 b/roles/alpine/templates/interfaces.j2
index 4a621c4..57568cb 100644
--- a/roles/alpine/templates/interfaces.j2
+++ b/roles/alpine/templates/interfaces.j2
@@ -13,5 +13,6 @@ iface {{ iface.name }} inet static
     gateway {{ gateway | ipaddr('address') }}
 {% endif %}
 {% endfor %}
+    pre-up echo 0 > /proc/sys/net/ipv6/conf/$IFACE/autoconf
 
 {% endfor %}