From 0f7e5371e702d4e2389f6fa6dfbda11bc9da6257 Mon Sep 17 00:00:00 2001
From: Christian Poessinger <christian@poessinger.com>
Date: Thu, 7 Apr 2022 18:35:10 +0200
Subject: ipv6: T4346: deprecate CLI command to disable IPv6 address family

---
 src/conf_mode/system-ipv6.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/conf_mode/system-ipv6.py b/src/conf_mode/system-ipv6.py
index 7fb2dd1cf..e6bcc12ad 100755
--- a/src/conf_mode/system-ipv6.py
+++ b/src/conf_mode/system-ipv6.py
@@ -17,6 +17,7 @@
 import os
 
 from sys import exit
+from vyos.base import DeprecationWarning
 from vyos.config import Config
 from vyos.configdict import dict_merge
 from vyos.configdict import leaf_node_changed
@@ -49,6 +50,9 @@ def get_config(config=None):
     return opt
 
 def verify(opt):
+    if 'disable' in opt:
+        DeprecationWarning('VyOS 1.4 (sagitta) will remove the CLI command to '\
+                           'disable IPv6 address family in the Linux Kernel!')
     pass
 
 def generate(opt):
-- 
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