Merge pull request #1276 from c-po/t4346-deprecate-ipv6-disable

T4346 Deprecate "system ipv6 disable" option to disable address family within OS kernel (equuleus)

2 files changed, 10 insertions, 0 deletions

diff --git a/python/vyos/base.py b/python/vyos/base.py
index c78045548..fd22eaccd 100644
--- a/python/vyos/base.py
+++ b/python/vyos/base.py
@@ -15,6 +15,12 @@
 
 from textwrap import fill
 
+class DeprecationWarning():
+    def __init__(self, message):
+        # Reformat the message and trim it to 72 characters in length
+        message = fill(message, width=72)
+        print(f'\nDEPRECATION WARNING: {message}\n')
+
 class ConfigError(Exception):
     def __init__(self, message):
         # Reformat the message and trim it to 72 characters in length
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):