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-rwxr-xr-xsrc/conf_mode/nat.py17
1 files changed, 14 insertions, 3 deletions
diff --git a/src/conf_mode/nat.py b/src/conf_mode/nat.py
index e19b12937..5af06ed16 100755
--- a/src/conf_mode/nat.py
+++ b/src/conf_mode/nat.py
@@ -126,6 +126,18 @@ def verify_rule(config, err_msg, groups_dict):
if config['protocol'] not in ['tcp', 'udp', 'tcp_udp']:
raise ConfigError('Protocol must be tcp, udp, or tcp_udp when specifying a port-group')
+ if 'load_balance' in config:
+ for item in ['source-port', 'destination-port']:
+ if item in config['load_balance']['hash'] and config['protocol'] not in ['tcp', 'udp']:
+ raise ConfigError('Protocol must be tcp or udp when specifying hash ports')
+ count = 0
+ if 'backend' in config['load_balance']:
+ for member in config['load_balance']['backend']:
+ weight = config['load_balance']['backend'][member]['weight']
+ count = count + int(weight)
+ if count != 100:
+ Warning(f'Sum of weight for nat load balance rule is not 100. You may get unexpected behaviour')
+
def get_config(config=None):
if config:
conf = config
@@ -199,7 +211,7 @@ def verify(nat):
Warning(f'rule "{rule}" interface "{config["outbound_interface"]}" does not exist on this system')
if not dict_search('translation.address', config) and not dict_search('translation.port', config):
- if 'exclude' not in config:
+ if 'exclude' not in config and 'backend' not in config['load_balance']:
raise ConfigError(f'{err_msg} translation requires address and/or port')
addr = dict_search('translation.address', config)
@@ -211,7 +223,6 @@ def verify(nat):
# common rule verification
verify_rule(config, err_msg, nat['firewall_group'])
-
if dict_search('destination.rule', nat):
for rule, config in dict_search('destination.rule', nat).items():
err_msg = f'Destination NAT configuration error in rule {rule}:'
@@ -223,7 +234,7 @@ def verify(nat):
Warning(f'rule "{rule}" interface "{config["inbound_interface"]}" does not exist on this system')
if not dict_search('translation.address', config) and not dict_search('translation.port', config) and not dict_search('translation.redirect.port', config):
- if 'exclude' not in config:
+ if 'exclude' not in config and 'backend' not in config['load_balance']:
raise ConfigError(f'{err_msg} translation requires address and/or port')
# common rule verification