IP Calculator

The calculator is JavaScript based and refreshes as you type. It will calculate the

• IP Address
• Network mask
• Wildcard
• Network address
• Broadcast address
• First Host IP
• Last Host IP Number of Hosts in the network

Both IPv4 and IPv6 are supported

The IP Calculator is added to the views of

• Aggregate
• Prefix
• IP Address

In addition the plugin adds the ability to visualize and share the subnetting of a prefix into smaller subnets

Installation

IPCalculater Version	NetBox version	Remarks
v0.0-1.3	Netbox <=3.7
v1.4.x	Netbox >=3.7	compatible with v3 and v4

Enable the plugin

Update the /opt/netbox/local_requirements.txt with (referenced with a dash)

netbox-ipcalculator

Edit the /opt/netbox/netbox/netbox/configuration.py and add the plugin (referenced with an underscore)

PLUGINS = ['netbox_ipcalculator']

Activation Option 1 - Install and activite the plugin, with NetBox 'upgrade.sh' script (fast)

Install the plugin

/opt/netbox/venv/bin/python3 -m pip install netbox-ipcalculator

collect static files (local jquery copy)

/opt/netbox/venv/bin/python3 /opt/netbox/netbox/manage.py collectstatic

Activation Option 2 - Install the plugin and run the NetBox 'upgrade.sh' (most reliable)

or run the ./upgrade.sh script (takes longer, but assures it will work after upgrades)

cd /opt/netbox ./upgrade.sh

Restart NetBox

sudo systemctl restart netbox

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_{Thanks to DavidC for the idea and the javascript code of the Prefix join/split https://github.com/davidc/subnets}