Trying to allow users to request a public IP address and then map it to private DHCP address. The problem is that i can update  but that deletes all previous entries. Using add i get  No such function supported    the code is below  import csv from datetime import datetime import os import meraki # Either input your API key below by uncommenting line 10 and changing line 16 to api_key=API_KEY, # or set an environment variable (preferred) to define your API key. The former is insecure and not recommended. # For example, in Linux/macOS: export MERAKI_DASHBOARD_API_KEY=XXXXXXXX # API_KEY = 'XXXXXXXX' def main(): # Instantiate a Meraki dashboard API session dashboard = meraki.DashboardAPI( #api_key='XXXXXXX', # api_key='XXXXXXX', //sandbox api_key= 'XXXXXXX', base_url='https://api.meraki.com/api/v1/', output_log=True, log_file_prefix=os.path.basename(__file__)[:-3], log_path='', print_console=False ) # Get list of organizations to which API key has access organizations = dashboard.organizations.getOrganizations() print(organizations) # Iterate through list of orgs for org in organizations: print(f'\nAnalyzing organization {org["name"]}:') org_id = org['id'] # Get list of networks in organization try: networks = dashboard.organizations.getOrganizationNetworks(org_id) print(networks) except meraki.APIError as e: print(f'Meraki API error: {e}') print(f'status code = {e.status}') print(f'reason = {e.reason}') print(f'error = {e.message}') continue except Exception as e: print(f'some other error: {e}') continue # Create local folder todays_date = f'{datetime.now():%Y-%m-%d}' folder_name = f'Org {org_id} clients {todays_date}' if folder_name not in os.listdir(): os.mkdir(folder_name) # Iterate through networks total = len(networks) counter = 1 print( f' - iterating through {total} networks in organization {org_id}') for net in networks: print( f'Finding clients in network {net["name"]} ({counter} of {total})') try: # Get list of clients on network, filtering on timespan of last 14 days clients = dashboard.networks.getNetworkClients( net['id'], timespan=60*60*24*14, perPage=1000, total_pages='all') except meraki.APIError as e: print(f'Meraki API error: {e}') print(f'status code = {e.status}') print(f'reason = {e.reason}') print(f'error = {e.message}') except Exception as e: print(f'some other error: {e}') else: if clients: # Write to file file_name = f'{net["name"]}.csv' output_file = open( f'{folder_name}/{file_name}', mode='w', newline='\n') field_names = clients[0].keys() csv_writer = csv.DictWriter(output_file, field_names, delimiter=',', quotechar='"', quoting=csv.QUOTE_ALL) csv_writer.writeheader() csv_writer.writerows(clients) output_file.close() print(f' - found {len(clients)}') counter += 1 print(f'Finding Network Appliance Firewall One To One Nat Rules') try: # Get list of clients on network, filtering on timespan of last 14 days networkOneToOne = dashboard.appliance.getNetworkApplianceFirewallOneToOneNatRules( net['id']) except meraki.APIError as e: print(f'Meraki API error: {e}') print(f'status code = {e.status}') print(f'reason = {e.reason}') print(f'error = {e.message}') except Exception as e: print(f'some other error: {e}') else: print(networkOneToOne) print(f'Updating Network Appliance Firewall One To One Nat Rules') try: value = [{'name': 'Dummy', 'lanIp': '10.0.0.249', 'publicIp': '196.223.61.181', 'uplink': 'internet1', 'allowedInbound': [{'protocol': 'tcp', 'destinationPorts': ["22", "80", "81", "443"], 'allowedIps': ["any"]}, ]}] # Get list of clients on network, filtering on timespan of last 14 days updatenetworkOneToOne = dashboard.appliance.updateNetworkApplianceFirewallOneToOneNatRules( net['id'], value) except meraki.APIError as e: print(f'Meraki API error: {e}') print(f'status code = {e.status}') print(f'reason = {e.reason}') print(f'error = {e.message}') except Exception as e: print(f'some other error: {e}') else: print(updatenetworkOneToOne) ## Stitch together one consolidated CSV per org# # output_file = open(f'{folder_name}.csv', mode='w', newline='\n') # field_names = ['id', 'mac', 'description', 'ip', 'ip6', 'ip6Local', 'user', 'firstSeen', 'lastSeen', 'manufacturer', 'os', 'recentDeviceSerial', # 'recentDeviceName', 'recentDeviceMac', 'ssid', 'vlan', 'switchport', 'usage', 'status', 'notes', 'smInstalled', 'groupPolicy8021x'] # field_names.insert(0, "Network Name") # field_names.insert(1, "Network ID") # csv_writer = csv.DictWriter( # output_file, field_names, delimiter=',', quotechar='"', quoting=csv.QUOTE_ALL) # csv_writer.writeheader() # for net in networks: # file_name = f'{net["name"]}.csv' # if file_name in os.listdir(folder_name): # with open(f'{folder_name}/{file_name}') as input_file: # csv_reader = csv.DictReader( # input_file, delimiter=',', quotechar='"', quoting=csv.QUOTE_ALL) # next(csv_reader) # for row in csv_reader: # row['Network Name'] = net['name'] # row['Network ID'] = net['id'] # csv_writer.writerow(row) # if _name_ == '__main__': start_time = datetime.now() main() end_time = datetime.now() print(f'\nScript complete, total runtime {end_time - start_time}') # def getOrganizationNetworks(apiKey, organizationId, query=None): # url = "/organizations/" + str(organizationId) + "/networks" # success, errors, headers, response = merakiRequest(apiKey, "get", url, p_queryItems=query, p_verbose=FLAG_REQUEST_VERBOSE) # return success, errors, response   ... 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