2 files changed, 53 insertions, 0 deletions
diff --git a/src/conf_mode/interfaces-vxlan.py b/src/conf_mode/interfaces-vxlan.py
index 05f68112a..ff8144e74 100755
--- a/src/conf_mode/interfaces-vxlan.py
+++ b/src/conf_mode/interfaces-vxlan.py
@@ -168,6 +168,13 @@ def verify(vxlan):
     verify_address(vxlan)
     verify_bond_bridge_member(vxlan)
     verify_mirror_redirect(vxlan)
+
+    # We use a defaultValue for port, thus it's always safe to use
+    if vxlan['port'] == '8472':
+        Warning('Starting from VyOS 1.4, the default port for VXLAN '\
+                'has been changed to 4789. This matches the IANA assigned '\
+                'standard port number!')
+
     return None
 
 def generate(vxlan):
diff --git a/src/migration-scripts/interfaces/31-to-32 b/src/migration-scripts/interfaces/31-to-32
new file mode 100755
index 000000000..35b397c39
--- /dev/null
+++ b/src/migration-scripts/interfaces/31-to-32
@@ -0,0 +1,46 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2023 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+# T5671: change port to IANA assigned default port
+
+from sys import argv
+from sys import exit
+from vyos.configtree import ConfigTree
+
+if len(argv) < 2:
+    print("Must specify file name!")
+    exit(1)
+
+file_name = argv[1]
+with open(file_name, 'r') as f:
+    config_file = f.read()
+    base = ['interfaces', 'vxlan']
+
+config = ConfigTree(config_file)
+if not config.exists(base):
+    # Nothing to do
+    exit(0)
+
+for vxlan in config.list_nodes(base):
+    if not config.exists(base + ['port']):
+        config.set(base + [vxlan, 'port'], value='8472')
+
+try:
+    with open(file_name, 'w') as f:
+        f.write(config.to_string())
+except OSError as e:
+    print(f'Failed to save the modified config: {e}')
+    exit(1)