Switching between COAP and HTTP via REST API?

Forum
1

What product/components do you use and which version/fix level?

Cumulocity IOT specifically LWM2M
Version: 1011.0.19

Are you using a free trial or a product with a customer license?

Product with a customer license

What are trying to achieve? Please describe in detail.

When I initially register my devices, I have to choose between the default of “HTTP” for file transfers or COAP using this field of the CSV file:
“fwUpdateSupportedDeviceProtocol”

As far as I can tell, there is no way to modify this setting once the device entry has been created.
Since I need to test both HTTP and COAP - if I have 10 devices, I need to create 20 device entries - 2 for each unit.

If there is a way to toggle this setting - it’s not visible via the dashboard.
I have attempted to modify this setting in the same fashion I used to modify all of the settings that appear in the
“LWM2M bootstrap parameters” section of the console - using the REST API.
Unfortunately, while I have not received any errors, the setting remains unchanged.

IS there a way to modify this setting on the fly? It would allow me to dispense with 50% of my configurations.

Do you get any error messages? Please provide a full error message screenshot and log file.

No Error messages.

thanks

Jim

2

Hi Jim,

can you give some details or an example how you tried to change the property?

Regards
Stefan

3

I attempted to modify it using Curl like this:

curl [actual proper link deleted for forum]
-X ‘PUT’
-H ‘Accept: application/json, text/plain, /’
-H ‘Accept-Language: en-US,en;q=0.9,es;q=0.8’
-H ‘Authorization: Basic [deleted]I=’
-H ‘Connection: keep-alive’
-H ‘Content-Type: application/json;charset=UTF-8’
-H ‘DNT: 1’
-H 'Origin: [actual proper link deleted for forum]
-H 'Referer: [actual proper link deleted for forum]
-H ‘Sec-Fetch-Dest: empty’
-H ‘Sec-Fetch-Mode: cors’
-H ‘Sec-Fetch-Site: same-origin’
-H ‘UseXBasic: true’
-H ‘User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Safari/537.36’
-H ‘X-Cumulocity-Application-Key: devicemanagement-application-key’
-H ‘sec-ch-ua: " Not A;Brand";v=“99”, “Chromium”;v=“102”, “Google Chrome”;v=“102”’
-H ‘sec-ch-ua-mobile: ?0’
-H ‘sec-ch-ua-platform: “macOS”’
-H ‘sec-gpc: 1’
–data-raw ‘{“defaultMinimumPeriod”:null,“bootstrapId”:“jim_F3B4_HTTP”,“bootstrapKey”:“”,“securityInstanceOffset”:null,“secretKey”:null,“lwm2mShortServerId”:“2”,“disableTimeout”:null,“securityMode”:“PSK”,“notificationStoring”:null,“defaultMaximumPeriod”:null,“endpoint”:“jim_F3B4_HTTP”,“serverUri”:“coap://lwm2m.us.cumulocity.com:5783”,“bindingMode”:null,“bootstrapShortServerId”:“0”,“generateBootstrapServerConfig”:false,“serverPublicKey”:null,“publicKeyOrId”:“jim_F3B4_HTTP”,“registrationLifeTime”:null, “fwUpdateSupportedDeviceProtocol”: “COAP”}’
–compressed

Basically, this is a clone of what my browser sent during the last bootstrap config update I performed - I just appended

“fwUpdateSupportedDeviceProtocol”: “COAP”

to the JSON in an effort to modify it.

Why did I try it like this?

Since I performed a query and I saw “fwUpdateSupportedDeviceProtocol” was in the same area in the resultant JSON output as some of the bootstrap keys.

Here’s an excerpt from that query output:

‘lwm2m server uri’: ‘coap://lwm2m.us.cumulocity.com:5783’, ‘endpoint id’: ‘jim_F3B4_HTTP’, ‘c8y_Mobile’: {‘mnc’: ‘410’, ‘cellId’: ‘44827912’, ‘mcc’: ‘310’}, ‘c8y_ActiveAlarmsStatus’: {‘major’: 2, ‘warning’: 1}, ‘bootstrapShortServerId’: ‘0’, ‘generateBootstrapServerConfig’: False, ‘fwUpdateSupportedDeviceProtocol’: ‘HTTP’,

In this excerpt - I saw:

generateBootstrapServerConfig
bootstrapShotServerId
lwm2m server uri
endpoint id

All of these were familiar to me as coming from the " LWM2M bootstrap parameters" section of the webconsole,
so I was hoping to piggyback a modification for ‘fwUpdateSupportedDeviceProtocol’ in there also.

Whilst my modification generated no errors - ‘fwUpdateSupportedDeviceProtocol’ seems to be ignored.

So - I am now assuming this isn’t the proper spot to modify it - and hoping someone can tell me where the proper spot to modify it is.

thanks

Jim

4

Hi Jim,

normally it should be enough just to put the fragment “fwUpdateSupportedDeviceProtocol” of the managed object so the other ones are not touched.

PUT
{
    "fwUpdateSupportedDeviceProtocol": "COAP
}

So if you do a get afterwards the property is set in the managed object like this:

"fwUpdateSupportedDeviceProtocol": "COAP"

By “seems to be ignored” you mean that the lwm2m devices is ignoring this property even it is correctly set on the managed object?

I don’t know the lwm2m implementation details how & when this fragment is used by the lwm2m server. So if you don’t mind I would ask you to open a support ticket: https://getsupport.softwareag.com/
If the managed object is not updated properly try my approach by just using the fragment you want to add/update.

Regards
Stefan

5

Assuming this is what you were suggesting I try:

curl ‘https ://lairdconnect.us.cumulocity.com/service/lwm2m-agent/device/30296346/bootstrapParams’ \

-X ‘PUT’
-H ‘Accept: application/json, text/plain, /’
-H ‘Accept-Language: en-US,en;q=0.9,es;q=0.8’
-H 'Authorization: Basic [deleted]
-H ‘Connection: keep-alive’
-H ‘Content-Type: application/json;charset=UTF-8’
-H ‘DNT: 1’
-H ‘Sec-Fetch-Dest: empty’
-H ‘Sec-Fetch-Mode: cors’
-H ‘Sec-Fetch-Site: same-origin’
-H ‘UseXBasic: true’
-H ‘X-Cumulocity-Application-Key: devicemanagement-application-key’
–data-raw ‘{“fwUpdateSupportedDeviceProtocol”: “COAP”}’
–compressed

The return code is 500, with this response:

{“error”:“LWM2M/Error”}

Is this a bug - or operator error?

Jim

6

(I’d edit the previous response if I could)

Just to be clear, I purposely inserted the space after the https to get the forum to allow the link - I’m not actually using a garbled URI)

7

Ok this was a misunderstanding from my side: I thought you are updating the managed object and not using the lwm2m-agent//bootstrapParams

But I guess your way is the one supposed to be working and not updating the managed object only.
I’ll see if I get some internal infos on that.

Regards
Stefan

8

Hi @jim.veneskey ,

I just got feedback and my assumed way seems to be the correct one. The /service/lwm2m-agent//bootstrapParams endpoint is not meant for the configuration you wanted to do.

Here are the details what you’ve to do:

  1. Use the endpoint {{url}}/inventory/managedObjects/{internal device ID}
PUT {{url}}/inventory/managedObjects/{internal device ID}
{
    "fwUpdateSupportedDeviceProtocol": "COAP
}
  1. Afterwards you should see the managed object of the devices updated:
GET {{url}}/inventory/managedObjects/{internal device ID}

Regards
Stefan
9

Here are the results. (quick answer - no change)
(only modifications I’m making for the forum are suppressing my auth key and munging the URLs a bit)

BEFORE Attempting the modification - delivery method = HTTP

curl ‘(URL)/inventory/managedObjects/30296346’ \

-H ‘Accept: application/json, text/plain, /’
-H ‘Accept-Language: en-US,en;q=0.9,es;q=0.8’
-H ‘Authorization: Basic Authen key here’
-H ‘Connection: keep-alive’
-H ‘DNT: 1’
-H ‘Referer: Device Management’
-H ‘Sec-Fetch-Dest: empty’
-H ‘Sec-Fetch-Mode: cors’
-H ‘Sec-Fetch-Site: same-origin’
-H ‘UseXBasic: true’
-H ‘User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Safari/537.36’
-H ‘X-Cumulocity-Application-Key: devicemanagement-application-key’
-H ‘sec-ch-ua: " Not A;Brand";v=“99”, “Chromium”;v=“102”, “Google Chrome”;v=“102”’
-H ‘sec-ch-ua-mobile: ?0’
-H ‘sec-ch-ua-platform: “macOS”’
-H ‘sec-gpc: 1’
–compressed
{“additionParents”:{“references”:,“self”:“(URL)/inventory/managedObjects/30296346/additionParents”},“owner”:“device_jim_F3B4_HTTP”,“childDevices”:{“references”:,“self”:“(URL)/inventory/managedObjects/30296346/childDevices”},“childAssets”:{“references”:,“self”:“(URL)inventory/managedObjects/30296346/childAssets”},“creationTime”:“2022-07-14T15:42:37.533Z”,“type”:“c8y_lwm2m”,“lastUpdated”:“2022-07-20T18:41:08.915Z”,“childAdditions”:{“references”:,“self”:“(URL)/inventory/managedObjects/30296346/childAdditions”},“name”:“LwM2M Laird Connectivity, Inc. jim_F3B4_HTTP”,“assetParents”:{“references”:,“self”:“(URL)/inventory/managedObjects/30296346/assetParents”},“deviceParents”:{“references”:,“self”:“(URL)inventory/managedObjects/30296346/deviceParents”},“self”:“https://t220788092.us.cumulocity.com/inventory/managedObjects/30296346",“id”:“30296346”,“c8y_Lwm2m_0!1”:{“instance”:“1”,“operations”:true},“c8y_Lwm2m_1!0”:{“instance”:“0”,“operations”:true},“c8y_Firmware”:{“name”:"IG60LL non-SD”,“version”:“10.40.0.10”,“url”:“(URL)/inventory/binaries/31920571”},“defaultMinimumPeriod”:35,“c8y_Availability”:{“lastMessage”:“2022-07-20T18:41:08.957Z”,“status”:“UNAVAILABLE”},“c8y_Lwm2m_0!0”:{“instance”:“0”,“operations”:true},“c8y_Lwm2m_5!0”:{“1”:“”,“2”:“”,“instance”:“0”,“operations”:true,“3”:0,“5”:0,“9”:2},“c8y_Lwm2m_4!0”:{“0”:41,“1”:“{"0":41}”,“12”:[68,112],“2”:-82,“instance”:“0”,“operations”:true,“4”:“"192.168.1.174"”,“7”:“"iot0119.com.attz.mnc170.mcc310.gprs"”,“8”:44827912,“9”:410,“10”:310},“lwm2m psk_id”:“jim_F3B4_HTTP”,“c8y_Lwm2m_3!0”:{“12”:“”,“13”:1658334940000,“instance”:“0”,“14”:“UTC+00:00”,“0”:“Laird Connectivity, Inc.”,“1”:“Sentrius IG60”,“operations”:true,“3”:“10.40.0.10”,“4”:“”,“5”:“”,“6”:“{"0":0}”,“21”:257699,“10”:117559},“c8y_Lwm2m_9!0”:{“0”:“lwm2m-python-client”,“11”:“”,“1”:“0.2”,“instance”:“0”,“operations”:true,“4”:“”,“6”:“”,“10”:“”},“lwm2m server uri”:“coap://lwm2m.us.cumulocity.com:5784”,“registrationLifetime”:35,“endpoint id”:“jim_F3B4_HTTP”,“c8y_Mobile”:{“mnc”:“410”,“cellId”:“44827912”,“mcc”:“310”},“c8y_ActiveAlarmsStatus”:{“major”:3,“warning”:2},“bootstrapShortServerId”:“0”,“generateBootstrapServerConfig”:true,“fwUpdateSupportedDeviceProtocol”:“HTTP”,“c8y_lwm2m_commons_model_fwupdate_Lwm2mFirmwareUpdate”:{“result”:“UPDATE_SUCCESSFUL”,“protocol”:“HTTP”,“deliveryMethod”:“PULL_AND_PUSH_SUPPORTED”,“currentStatus”:“SUCCESS”,“endpointUrl”:“(URL):8773/firmware/bf77f8c6-9505-45be-8220-0ef595864e61”,“history”:[{“date”:“2022-07-20T11:35:48.577Z”,“status”:“STARTED”},{“date”:“2022-07-20T11:35:48.619Z”,“status”:“READING_DEVICE_CONFIG”},{“date”:“2022-07-20T11:35:48.960Z”,“status”:“DEVICE_CONFIG_READY”},{“date”:“2022-07-20T11:35:49.732Z”,“status”:“DELIVERING_FIRMWARE”},{“date”:“2022-07-20T11:36:11.444Z”,“status”:“FIRMWARE_DELIVERED”},{“date”:“2022-07-20T11:36:11.491Z”,“status”:“TRIGGERING_UPDATE”},{“date”:“2022-07-20T11:36:11.522Z”,“status”:“FIRMWARE_DELIVERED”},{“date”:“2022-07-20T11:36:12.205Z”,“status”:“TRIGGERING_UPDATE”},{“date”:“2022-07-20T11:36:12.409Z”,“status”:“UPDATE_TRIGGERED”},{“date”:“2022-07-20T11:36:34.193Z”,“status”:“SUCCESS”}],“endpointUuid”:“bf77f8c6-9505-45be-8220-0ef595864e61”,“firmware”:{“name”:“IG60LL non-SD”,“version”:“10.40.0.10”,“url”:“(URL)/inventory/binaries/31920571”},“startDate”:“2022-07-20T11:35:48.577Z”},“c8y_Lwm2m_10259!0”:{“instance”:“0”,“operations”:true},“bootstrap psk_id”:“jim_F3B4_HTTP”,“c8y_GenericUi”:{},“com_cumulocity_model_Agent”:{},“c8y_Connection”:{“status”:“CONNECTED”},“c8y_RequiredAvailability”:{“responseInterval”:2},“c8y_Lwm2m_13!0”:{“instance”:“0”,“operations”:true},“c8y_SupportedOperations”:[“c8y_Command”,“c8y_Restart”,“c8y_Firmware”,“c8y_Software”],“lwm2m psk_key”:“123456789012345678901234567890ab”,“lwm2mShortServerId”:“1”,“c8y_Lwm2m_12!0”:{“0”:“wlan0”,“instance”:“0”,“operations”:true},“securityMode”:“PSK”,“c8y_Hardware”:{“serialNumber”:null,“model”:“Sentrius IG60”,“revision”:“10.40.0.10”},“c8y_IsDevice”:{},“bootstrap psk_key”:“098765432109876543210987654321cc”}

Excerpt from blob above:

“generateBootstrapServerConfig”:true,“fwUpdateSupportedDeviceProtocol”:“HTTP”,“c8y_lwm2m_commons_model_fwupdate_Lwm2mFirmwareUpdate”

Attempting the modification - delivery method to COAP

curl ‘(URL)/inventory/managedObjects/30296346’ \

-X ‘PUT’
-H ‘Accept: application/json, text/plain, /’
-H ‘Accept-Language: en-US,en;q=0.9,es;q=0.8’
-H ‘Authorization: Basic Authen key here’
-H ‘Connection: keep-alive’
-H ‘Content-Type: application/json;charset=UTF-8’
-H ‘DNT: 1’
-H ‘Origin: (URL)’
-H ‘Referer: (URL)/apps/devicemanagement/index.html’
-H ‘Sec-Fetch-Dest: empty’
-H ‘Sec-Fetch-Mode: cors’
-H ‘Sec-Fetch-Site: same-origin’
-H ‘UseXBasic: true’
-H ‘User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Safari/537.36’
-H ‘X-Cumulocity-Application-Key: devicemanagement-application-key’
-H ‘sec-ch-ua: " Not A;Brand";v=“99”, “Chromium”;v=“102”, “Google Chrome”;v=“102”’
-H ‘sec-ch-ua-mobile: ?0’
-H ‘sec-ch-ua-platform: “macOS”’
-H ‘sec-gpc: 1’
–data-raw ‘{“fwUpdateSupportedDeviceProtocol”: “COAP”}’
–compressed

Querying to see if there was any change

curl ‘(URL)/inventory/managedObjects/30296346’ \

-H ‘Accept: application/json, text/plain, /’
-H ‘Accept-Language: en-US,en;q=0.9,es;q=0.8’
-H ‘Authorization: Basic Authen Key’
-H ‘Connection: keep-alive’
-H ‘DNT: 1’
-H ‘Referer: (URL)/apps/devicemanagement/index.html’
-H ‘Sec-Fetch-Dest: empty’
-H ‘Sec-Fetch-Mode: cors’
-H ‘Sec-Fetch-Site: same-origin’
-H ‘UseXBasic: true’
-H ‘User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Safari/537.36’
-H ‘X-Cumulocity-Application-Key: devicemanagement-application-key’
-H ‘sec-ch-ua: " Not A;Brand";v=“99”, “Chromium”;v=“102”, “Google Chrome”;v=“102”’
-H ‘sec-ch-ua-mobile: ?0’
-H ‘sec-ch-ua-platform: “macOS”’
-H ‘sec-gpc: 1’
–compressed
{“additionParents”:{“references”:,“self”:“(URL)/inventory/managedObjects/30296346/additionParents”},“owner”:“device_jim_F3B4_HTTP”,“childDevices”:{“references”:,“self”:“(URL)/inventory/managedObjects/30296346/childDevices”},“childAssets”:{“references”:,“self”:“(URL)/inventory/managedObjects/30296346/childAssets”},“creationTime”:“2022-07-14T15:42:37.533Z”,“type”:“c8y_lwm2m”,“lastUpdated”:“2022-07-20T18:41:08.915Z”,“childAdditions”:{“references”:,“self”:“(URL)/inventory/managedObjects/30296346/childAdditions”},“name”:“LwM2M Laird Connectivity, Inc. jim_F3B4_HTTP”,“assetParents”:{“references”:,“self”:“(URL)/inventory/managedObjects/30296346/assetParents”},“deviceParents”:{“references”:,“self”:“(URL)/inventory/managedObjects/30296346/deviceParents”},“self”:“https://t220788092.us.cumulocity.com/inventory/managedObjects/30296346",“id”:“30296346”,“c8y_Lwm2m_0!1”:{“instance”:“1”,“operations”:true},“c8y_Lwm2m_1!0”:{“instance”:“0”,“operations”:true},“c8y_Firmware”:{“name”:"IG60LL non-SD”,“version”:“10.40.0.10”,“url”:“(URL)/inventory/binaries/31920571”},“defaultMinimumPeriod”:35,“c8y_Availability”:{“lastMessage”:“2022-07-20T18:41:08.957Z”,“status”:“UNAVAILABLE”},“c8y_Lwm2m_0!0”:{“instance”:“0”,“operations”:true},“c8y_Lwm2m_5!0”:{“1”:“”,“2”:“”,“instance”:“0”,“operations”:true,“3”:0,“5”:0,“9”:2},“c8y_Lwm2m_4!0”:{“0”:41,“1”:“{"0":41}”,“12”:[68,112],“2”:-82,“instance”:“0”,“operations”:true,“4”:“"192.168.1.174"”,“7”:“"iot0119.com.attz.mnc170.mcc310.gprs"”,“8”:44827912,“9”:410,“10”:310},“lwm2m psk_id”:“jim_F3B4_HTTP”,“c8y_Lwm2m_3!0”:{“12”:“”,“13”:1658334940000,“instance”:“0”,“14”:“UTC+00:00”,“0”:“Laird Connectivity, Inc.”,“1”:“Sentrius IG60”,“operations”:true,“3”:“10.40.0.10”,“4”:“”,“5”:“”,“6”:“{"0":0}”,“21”:257699,“10”:117559},“c8y_Lwm2m_9!0”:{“0”:“lwm2m-python-client”,“11”:“”,“1”:“0.2”,“instance”:“0”,“operations”:true,“4”:“”,“6”:“”,“10”:“”},“lwm2m server uri”:“coap://lwm2m.us.cumulocity.com:5784”,“registrationLifetime”:35,“endpoint id”:“jim_F3B4_HTTP”,“c8y_Mobile”:{“mnc”:“410”,“cellId”:“44827912”,“mcc”:“310”},“c8y_ActiveAlarmsStatus”:{“major”:3,“warning”:2},“bootstrapShortServerId”:“0”,“generateBootstrapServerConfig”:true,“fwUpdateSupportedDeviceProtocol”:“HTTP”,“c8y_lwm2m_commons_model_fwupdate_Lwm2mFirmwareUpdate”:{“result”:“UPDATE_SUCCESSFUL”,“protocol”:“HTTP”,“deliveryMethod”:“PULL_AND_PUSH_SUPPORTED”,“currentStatus”:“SUCCESS”,“endpointUrl”:“(URL):8773/firmware/bf77f8c6-9505-45be-8220-0ef595864e61”,“history”:[{“date”:“2022-07-20T11:35:48.577Z”,“status”:“STARTED”},{“date”:“2022-07-20T11:35:48.619Z”,“status”:“READING_DEVICE_CONFIG”},{“date”:“2022-07-20T11:35:48.960Z”,“status”:“DEVICE_CONFIG_READY”},{“date”:“2022-07-20T11:35:49.732Z”,“status”:“DELIVERING_FIRMWARE”},{“date”:“2022-07-20T11:36:11.444Z”,“status”:“FIRMWARE_DELIVERED”},{“date”:“2022-07-20T11:36:11.491Z”,“status”:“TRIGGERING_UPDATE”},{“date”:“2022-07-20T11:36:11.522Z”,“status”:“FIRMWARE_DELIVERED”},{“date”:“2022-07-20T11:36:12.205Z”,“status”:“TRIGGERING_UPDATE”},{“date”:“2022-07-20T11:36:12.409Z”,“status”:“UPDATE_TRIGGERED”},{“date”:“2022-07-20T11:36:34.193Z”,“status”:“SUCCESS”}],“endpointUuid”:“bf77f8c6-9505-45be-8220-0ef595864e61”,“firmware”:{“name”:“IG60LL non-SD”,“version”:“10.40.0.10”,“url”:“(URL)/inventory/binaries/31920571”},“startDate”:“2022-07-20T11:35:48.577Z”},“c8y_Lwm2m_10259!0”:{“instance”:“0”,“operations”:true},“bootstrap psk_id”:“jim_F3B4_HTTP”,“c8y_GenericUi”:{},“com_cumulocity_model_Agent”:{},“c8y_Connection”:{“status”:“DISCONNECTED”},“c8y_RequiredAvailability”:{“responseInterval”:2},“c8y_Lwm2m_13!0”:{“instance”:“0”,“operations”:true},“c8y_SupportedOperations”:[“c8y_Command”,“c8y_Restart”,“c8y_Firmware”,“c8y_Software”],“lwm2m psk_key”:“123456789012345678901234567890ab”,“lwm2mShortServerId”:“1”,“c8y_Lwm2m_12!0”:{“0”:“wlan0”,“instance”:“0”,“operations”:true},“securityMode”:“PSK”,“c8y_Hardware”:{“serialNumber”:null,“model”:“Sentrius IG60”,“revision”:“10.40.0.10”},“c8y_IsDevice”:{},“bootstrap psk_key”:“098765432109876543210987654321cc”}

Excerpt from blob above:

“generateBootstrapServerConfig”:true,“fwUpdateSupportedDeviceProtocol”:“HTTP”,"c8y_lwm2m_commons_model_fwupdate_Lwm2mFirmwareUpdate

No change.

10

Hi Jim,

I tested it with Postman and it works fine with this data-raw line:
–data-raw ‘{
“fwUpdateSupportedDeviceProtocol”: “COAP”
}’

Please check:

  1. your quotation marks. In your text I see “ and ” , these are not recognized by my Postman test.
    I use " (windows character map U+0022)
  2. which response do you get when you send your PUT request? It should be “200 OK”

Regards, Christian

1 Like
11

Hi,
I believe the final issue I was seeing was indeed those funky quote marks.
I went back and overwrote them with the standard (22) character and it seems to be updating correctly now.

So - I was making two mistakes - attempting to update it via the bootstrap parameters (I could see it in there - so I assumed I could update it from there) and those silly quote marks.

Thanks for your help!

Jim

1 Like
12

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