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-rwxr-xr-xsrc/conf_mode/service_router-advert.py3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/conf_mode/service_router-advert.py b/src/conf_mode/service_router-advert.py
index 4345bea1d..86b0f8dd5 100755
--- a/src/conf_mode/service_router-advert.py
+++ b/src/conf_mode/service_router-advert.py
@@ -64,6 +64,9 @@ def verify(rtradv):
if not (int(valid_lifetime) >= int(preferred_lifetime)):
raise ConfigError('Prefix valid-lifetime must be greater then or equal to preferred-lifetime')
+ if 'base_interface' in prefix_config and prefix != '::/64':
+ raise ConfigError('Prefix base-interface can only be used together with the wildcard prefix "::/64"')
+
if 'nat64prefix' in interface_config:
nat64_supported_lengths = [32, 40, 48, 56, 64, 96]
for prefix, prefix_config in interface_config['nat64prefix'].items():