diff options
| -rwxr-xr-x | src/conf_mode/dhcpv6_server.py | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/conf_mode/dhcpv6_server.py b/src/conf_mode/dhcpv6_server.py index d2769466e..039321430 100755 --- a/src/conf_mode/dhcpv6_server.py +++ b/src/conf_mode/dhcpv6_server.py @@ -397,6 +397,12 @@ def verify(dhcpv6): 'in shared network {2} is outside subnet {3}!' \ .format(mapping['ipv6_address'], mapping['name'], network['name'], subnet['network'])) + # Subnets must be unique + if subnet['network'] in subnets: + raise ConfigError('DHCPv6 subnets must be unique! Subnet {0} defined multiple times!'.format(subnet['network'])) + else: + subnets.append(subnet['network']) + # DHCPv6 requires at least one configured address range or one static mapping # (FIXME: is not actually checked right now?) |