AzNetworkTool CLI

AzNetworkTool CLI extends Azure CLI for network operationnal needs.

This CLI helps us daily to:

• Find to which of our Azure resource(s) belong an IP Address, whether public or private. NIC, (I|E)LB, Redis & Public IPs supported.
• Find available subnets in a virtual network.
• Find an address space when we to create a virtual Network that not overlap with existing virtual networks. Useful when we need to peer Virtual Networks.

Installation

git clone https://github.com/michelin/AzNetworkTool.git

Prerequisites

• Bash
• Azure CLI
• Azure CLI Resource Graph extension
• Python 3.9
• Python ipaddress library
• jq
• Sign in with Azure CLI

Usage

./AzNetworkTool

AzNetworkTool
Version: 0.1.0

Usage: AzNetworkTool [command]

Commands:
  what-is-this-ip                 Get Azure Resource associated to a public or private IP address.
  vnet-available-subnets          Get available subnets inside a VNET
  vnet-addrespace-wo-overlap      Get available VNET address spaces that will not overlap with existings
  *                               Help

What Is This Ip

• Check if an IP address is used. If so, which resource is using it

./AzNetworkTool what-is-this-ip 10.224.192.53
	-> NIC found:
049118e2-4814-401b-a34d-a67a35abc6a9	myresource_group	myapp-privateendpoint.nic.458ed4c9-85de-412a-bd6c-8361f1aad10c	10.224.192.53

./AzNetworkTool what-is-this-ip 10.224.100.165
	-> Redis found:
52cfe19f-528c-4e57-9a6e-019f546af4d2	myresource_group	myapp2-redis	10.224.100.165

./AzNetworkTool what-is-this-ip 10.224.255.253
IP not found!

Available Subnets inside a Virtual Network

• Find available subnets inside a Virtual Network.

$ ./AzNetworkTool vnet-available-subnets /subscriptions/<SUBSCRIPTIONID>/resourceGroups/<RESOURCEGROUP>/providers/Microsoft.Network/virtualNetworks/<VIRTUALNETWORKNAME>
Available ranges - processing in progress ...
['10.224.195.72/29', '10.224.195.96/27', '10.224.118.0/23']

Available Address Spaces that will not overlap with existing VNETs

• Get available VNET address spaces that will not overlap with existings. 10.224.0.0/24 is here the address range of an Azure Virtual Datacenter

$ ./AzNetworkTool vnet-addrespace-wo-overlap 10.224.0.0/24

Available Address Space for Virtual Networks - processing in progress ...
['10.224.96.128/26', '10.224.208.0/20', '10.224.224.0/19']

Source

AzNetworkTool is based on Brot and Games CLI.