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The Cloudamize Network Scanner is a wrapper for the open source tool “nmap”. Our wrapper will run the tool, process the data, and send it back to the Cloudamize data collection servers. The tool must be downloaded prior to use: https://nmap.org/ and is not packaged with the Cloudamize Network Scanner wrapper. Please refer to nmap documentation for any queries regarding its usage.
The Cloudamize Network Scanner works with any of our supported Cloud Service Providers.
Usage
The data collected by the Network Scanner can be used in the following ways:
To identify Windows and Linux servers that are not included in the Cloudamize assessment, and check off in real-time which servers are connected to Cloudamize using the Network Discovery tab (see below).
To identify NAS and SAN devices. NetApp devices can also be identified so they can potentially be added to an Agentless Data Collector to gather data.
To identify other servers (Unix systems, mainframes, etc.) which will be identifiable in the Migration Planner to assist with potential refactoring.
Requirements
The nmap tool is run from a Linux server. Its documentation can be found here.
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The server should have internal firewall visibility to as much of your network as you wish to scan for discovery , and external firewall access based on the endpoint of your assessment:
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| Note |
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The utility may have an unpredictable impact on your network - it is designed to back off if it starts to overload the network, but there are always risks. The utility can be passed the |
| Note |
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The Depending on the size of the network, the scanner may take a long time to run depending on the size of the network , and there is no resume functionality should it be interrupted. It is important that the machine scanning stays on. |
The scanner will function best if you give it a reasonable range to scan. Targets are specified in CIDR notation, for example, 192.168.1.1/24 for a network with subnet mask 255.255.255.0. Multiple ranges can be specified by separating them, each with a comma.
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usage: netscan [-h] [--target TARGET_IP] [--customer-key CUSTOMER_KEY]
[--dry-run] [--send-only] [--test-connection] [--no-ping]
[--fast] [--slow] [--verbose] [--version]
Runs nmap and collects results
optional arguments:
-h, --help show this help message and exit
--target TARGET_IP, -t TARGET_IP
REQUIRED. Target IP range(s), CIDR notation, comma
separated
--customer-key CUSTOMER_KEY, -c CUSTOMER_KEY
REQUIRED. Your customer key to associate the data
with.
--dry-run Don't send results to Cloudamize
--send-only Only send result data file to Cloudamize (do not scan)
--test-connection Only test connection to cloudamize servers
--no-ping Skip pinging, port scan all. SLOW.
--fast Scan network at a faster pace. May impact network
performance.
--slow Scan network at a slower pace. May take a very long
time.
--verbose, -v Run nmap with verbose flag.
--version Print version information. |
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Once the tool has completed its run and uploaded the data to the Cloudamize portal, you can view the results on the Network Discovery tab in the Inventory Settings page of the portal.
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On this tab, you can view all discovered network devices and any related details that have been discovered, labelled labeled by column. The results are searchable using the search box to the top-left.
The data collected by the Network Scanner can be used in the following ways:
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To identify Windows and Linux servers that are not included in the Cloudamize assessment.
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To identify NAS and SAN devices.
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To identify other servers (Unix systems, mainframes, etc.) which will assist in migration planning and automated 7R classification.
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“Included in Assessment” column identifies any servers that are connected to the portal by a Cloudamize data collector - Agent, Agentless, Hypervisor or vCenter connection are all valid connections. Using this, you can identify servers that aren’t currently included in the assessment and quickly be able to add them if desired, for example by adding their IP address to an existing Agentless Data Collector.
Support
The Network Scanner wrapper is provided as-is. Cloudamize can offer assistance configuring the command line for the tool, but cannot offer support for the nmap tool itself.
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