Next vaialble ip for a subnet

[#1]

Hi All

I am trying to get the next availble IP for a subnet and reserve it.

https://ddi.sss.test.net/wapi/v2.10.5/network/ZG5zLm5ldHdvcmskMTAuMTI0LjExLjAvMjcvMA:10.124.11.0/27/default?_function=next_available_ip&_return_as_object=1 -d {num:1}

But it is giving me error like below

    "Error": "AdmConProtoError: Invalid value for _return_as_object: 1 -d {num:1}",
    "code": "Client.Ibap.Proto",
    "text": "Invalid value for _return_as_object: 1 -d {num:1}"

i tried changing things but getting different different errors. taken the _ref for the subnet also.

Please help me in this.

[#2]

Hi,

You would need to do a POST operation to get the next available IP.

curl -k -u admin:infoblox -H 'content-type: application/json' -X POST "https://grid-
master/wapi/v2.11/network/ZG5zLm5ldHdvcmskMTcyLjIxLjEwLjAvMjQvMA:172.21.10.0/24/default?_function
=next_available_ip&_return_as_object=1" -d '{"num":1}' 

You can find the example here.

Hope this is helpful,

Thanks & Regards,

Krishna

[#3]

Thanks for your response. but i am usign postman for the request and when i am adding

-d '{"num":1}'

 at the end i am getting below error: 

    "Error": "AdmConProtoError: Invalid value for _return_as_object: 1 -d '{\"num\":1}' ",
    "code": "Client.Ibap.Proto",
    "text": "Invalid value for _return_as_object: 1 -d '{\"num\":1}' "

[#4]

Hi,

In case of Postman, you would have to specify this in the Body section, and not as part of the URL.

Regards,

Krishna Vasudevan

[#5]

I'd recommend a multiple body request, to retrieve the container ref and generate the new network, all in a single call.

Also I'd recommend using Postman variables for the gridmaster IP and WAPI version so they can be adjusted as needed for all calls.

The request type is POST and the url is https://{{gridmaster}}/wapi/{{version}}/request

The body is:

[
  {
    "method":"GET",
    "object":"networkcontainer",
    "data": {
  		"network": "10.0.0.0/8"
  	},
  	"assign_state": {"my_ref": "_ref" },
    "enable_substitution": true,
    "discard": true
  },
  {
    "method":"POST",
	"object": "network",
	"enable_substitution": true,
	"data": {
      "network": "func:nextavailablenetwork:##STATE:my_ref:##,24",
      "comment": "Created by Next Available Network"
	}
  }
]

Here's what it looks like in Postman, with a successful response shown in the response body:

[#6]

Thanks for the response @krishna. one more thing i need help is same request further i will use this url in powershell script like below

$url = "https://ddi.sss.st-gin.net/wapi/v2.10.5/network"
$Result = Invoke-RestMethod -Uri $url -Method Get -Credential $creds -Headers $headers -ContentType 'application/json'

So in this case where i have to mention the in the body, so how to do that

num:1

[#7 · Accepted solution]

Hi,

You would need to specify it as part of the body parameter.

$url = "https://grid-master/wapi/v2.11/network/ZG5zLm5ldHdvcmskMTkyLjE2OC4xMS4wLzI0LzA:192.168.11.0/24/default?_function=next_available_ip" 
$pwd = ConvertTo-SecureString "pwd" -AsPlainText -Force 
$creds = New-Object Management.Automation.PSCredential ('admin', $pwd) 
$num_details = @{ 
  num=1} 
$body = $num_details | ConvertTo-Json 
Invoke-RestMethod -Uri $url -Method POST -Credential $creds -ContentType 'application/json' -Body $body 

Regards,

Krishna

[#8]

Thanks a lot @Krishna for your help.

[#9]

Do you know if the next_available_ip function is getting the IP address from the IP range specified in the DHCP scope?

The reason for my question is that I am getting "Cannot find 1 available IP address(es) in this network." error but we are seeing a lot of available IP addresses in the UI > IPAM view.

[#10]

Hi!

Is't possible to use tags to fetch next availible IP address in some way? My thoughtwas to tag multiple network and from query tag IPAM fetch next availible ip from those network that is taged equal.
Or if there is any other way of doing im very much interested.

Thanks in advance

Patric

[#11]

You can do this using the multiple body request discussed above. In this example, I search on tow EAs, Site and Building, to identify the network and then find the next available IP in that network:

[
  {
    "method": "GET",
    "object": "network",
    "data": 
    {
      "*Site": "HQ",
      "*Building": "Two"
    },
    "assign_state": 
    {
      "netw_ref": "_ref"
    },
    "discard": true
  },
  {
    "method": "POST",
    "object": "##STATE:netw_ref:##",
    "args": 
    {
      "_function": "next_available_ip"
    },
    "enable_substitution": true
  }
]