Scan Subnet for Device

VitalPBX Community Support General Discussion Scan Subnet for Device

  • Post
    stmartinvincent
    Participant

    I try to use the button to scan devices on my subnet, it work but only in the same subnet of my server

    ex:

    -I scan 10.16.48.40/24 it work

    -I scan 10.244.4.0/22 it’s doesn’t work

    Is there something I need to enable to permit VPBX to scan or there something on my network who can block that action?

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  • Replies
    stmartinvincent
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    I know it’s not on the same VLAN so it maybe that who block me?

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    What is the output of the Following Command:

    nmap -T4 -sP -n -oN - YOURIP/CIDR
    	Ejemplo: 
    nmap -T4 -sP -n -oN - 192.168.20.0/21
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    stmartinvincent
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    Nmap scan report for 10.244.10.11
    Host is up (0.00086s latency).
    Nmap scan report for 10.244.10.12
    Host is up (0.00078s latency).
    Nmap scan report for 10.244.10.21
    Host is up (0.00069s latency).
    # Nmap done at Wed Mar 21 13:31:00 2018 — 1024 IP addresses (145 hosts up) scanned in 8.13 seconds

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    Is not detecting any device, you should check the network infrastructure in your company.

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    stmartinvincent
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    Like I said they are not on the same vlan, So Nmap won’t show any MAC.

    If i understand the scan subnet for devise button use the command nmap, so I will never be able to use the button.

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    Yes, it use nmap command to discover the devices in the network

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