ipaddr cidr_lookup

[Ryan Merolle]

Anyone use this filter function?  It seems like a lookup to see if an IP or subnet is a member of a larger prefix.

https://github.com/ansible-collections/ansible.netcommon/blob/master/plugins/filter/ipaddr.py#L665

I am just not sure on the proper usage.

Thanks!

[Scott Sturdivant]

Hi,

There are some great examples on the ipaddr filter's documentation page: https://docs.ansible.com/ansible/latest/user_guide/playbooks_filters_ipaddr.html#playbooks-filters-ipaddr

Yes, one of the things you can do is check to see if an IP belongs to a subnet.

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[Ryan Merolle]

Hello Scott,

I’m very familiar with the documented functions of the ipaddr filter. If you look at the link you just sent cidr_lookup is not a documented function, but it is listed in the source code of the filter as I linked to in my original post.

Thanks!

[Scott Sturdivant]

I think what you're asking for can be found by looking at the example for "By specifying a network range as a query, you can check if a given value is in that range:" in the docs.

An example playbook:

---
- hosts: localhost
  connection: local
  tasks:

    - debug:
        msg: belongs
      when: item | ipaddr('192.168.0.0/8')
      loop:
        - 192.168.0.45
        - 192.1.0.4/24
        - 127.0.0.1

Hope that helps!

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[Ryan Merolle]

Scott,

I appreciate your patience here.  Even when I said I am very familiar with the document, you pressed on and pointed me to the item that was right in front of my face!  That worked perfectly

Thanks!

On Monday, June 15, 2020 at 8:14:18 PM UTC-4, Scott Sturdivant wrote:

I think what you're asking for can be found by looking at the example for "By specifying a network range as a query, you can check if a given value is in that range:" in the docs.

An example playbook:

---
- hosts: localhost
  connection: local
  tasks:

    - debug:
        msg: belongs
      when: item | ipaddr('192.168.0.0/8')
      loop:
        - 192.168.0.45
        - 192.1.0.4/24
        - 127.0.0.1

Hope that helps!

On Mon, Jun 15, 2020 at 5:58 PM Ryan Merolle <Ryan....@gmail.com> wrote:

Hello Scott,

I’m very familiar with the documented functions of the ipaddr filter.  If you look at the link you just sent cidr_lookup is not a documented function, but it is listed in the source code of the filter as I linked to in my original post.

Thanks!

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