2 files changed, 82 insertions, 22 deletions
diff --git a/src/migration-scripts/l2tp/4-to-5 b/src/migration-scripts/l2tp/4-to-5
index 496dc83d6..3176f895a 100755
--- a/src/migration-scripts/l2tp/4-to-5
+++ b/src/migration-scripts/l2tp/4-to-5
@@ -24,7 +24,7 @@ import os
 from sys import argv
 from sys import exit
 from vyos.configtree import ConfigTree
-
+from vyos.base import Warning
 
 if len(argv) < 2:
     print("Must specify file name!")
@@ -45,33 +45,33 @@ if not config.exists(pool_base):
     exit(0)
 default_pool = ''
 range_pool_name = 'default-range-pool'
-subnet_base_name = 'default-subnet-pool'
-number = 1
-subnet_pool_name = f'{subnet_base_name}-{number}'
-prev_subnet_pool = subnet_pool_name
-if config.exists(pool_base + ['subnet']):
-    default_pool = subnet_pool_name
-    for subnet in config.return_values(pool_base + ['subnet']):
-        config.set(pool_base + [subnet_pool_name, 'range'], value=subnet)
-        if prev_subnet_pool != subnet_pool_name:
-            config.set(pool_base + [prev_subnet_pool, 'next-pool'],
-                       value=subnet_pool_name)
-            prev_subnet_pool = subnet_pool_name
-        number += 1
-        subnet_pool_name = f'{subnet_base_name}-{number}'
-
-    config.delete(pool_base + ['subnet'])
 
 if config.exists(pool_base + ['start']) and config.exists(pool_base + ['stop']):
+    def is_legalrange(ip1: str, ip2: str, mask: str):
+        from ipaddress import IPv4Interface
+        interface1 = IPv4Interface(f'{ip1}/{mask}')
+
+        interface2 = IPv4Interface(f'{ip2}/{mask}')
+        return interface1.network.network_address == interface2.network.network_address and interface2.ip > interface1.ip
+
     start_ip = config.return_value(pool_base + ['start'])
     stop_ip = config.return_value(pool_base + ['stop'])
-    ip_range = f'{start_ip}-{stop_ip}'
+    if is_legalrange(start_ip, stop_ip,'24'):
+        ip_range = f'{start_ip}-{stop_ip}'
+        config.set(pool_base + [range_pool_name, 'range'], value=ip_range, replace=False)
+        default_pool = range_pool_name
+    else:
+        Warning(
+            f'L2TP client-ip-pool range start-ip:{start_ip} and stop-ip:{stop_ip} can not be migrated.')
+
     config.delete(pool_base + ['start'])
     config.delete(pool_base + ['stop'])
-    config.set(pool_base + [range_pool_name, 'range'], value=ip_range)
-    if default_pool:
-        config.set(pool_base + [range_pool_name, 'next-pool'],
-                   value=default_pool)
+
+if config.exists(pool_base + ['subnet']):
+    for subnet in config.return_values(pool_base + ['subnet']):
+        config.set(pool_base + [range_pool_name, 'range'], value=subnet, replace=False)
+
+    config.delete(pool_base + ['subnet'])
     default_pool = range_pool_name
 
 if default_pool:
diff --git a/src/migration-scripts/l2tp/6-to-7 b/src/migration-scripts/l2tp/6-to-7
new file mode 100755
index 000000000..f49c4ab08
--- /dev/null
+++ b/src/migration-scripts/l2tp/6-to-7
@@ -0,0 +1,60 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2024 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/>.
+
+# Migrating to named ipv6 pools
+
+import os
+
+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()
+
+config = ConfigTree(config_file)
+base = ['vpn', 'l2tp', 'remote-access']
+pool_base = base + ['client-ipv6-pool']
+if not config.exists(base):
+    exit(0)
+
+if not config.exists(pool_base):
+    exit(0)
+
+ipv6_pool_name = 'ipv6-pool'
+config.copy(pool_base, pool_base + [ipv6_pool_name])
+
+if config.exists(pool_base + ['prefix']):
+    config.delete(pool_base + ['prefix'])
+    config.set(base + ['default-ipv6-pool'], value=ipv6_pool_name)
+if config.exists(pool_base + ['delegate']):
+    config.delete(pool_base + ['delegate'])
+# format as tag node
+config.set_tag(pool_base)
+
+try:
+    with open(file_name, 'w') as f:
+        f.write(config.to_string())
+except OSError as e:
+    print("Failed to save the modified config: {}".format(e))
+    exit(1)