On 07/27/2014 01:03 AM, olli hauer wrote:
> On 2014-07-27 08:36, ToddAndMargo wrote:
>> Hi All,
>>
>> I have been Duck Duck Go'ing looking for how to discover
>> all the mac addresses on my Ethernet.
>>
>> http://www.linuxinternetworks.com/how-to-find-out-all-mac-address-on-network/
>>
>> Says to do:  nmap -sP 192.168.1.0-255
>>
>> Done that before and it does give you all the mac addresses
>> on 192.168.1.0/24, but it does not give you mac addresses
>> for those devices with different network configuration
>> on your Ethernet.  (Like a stray access point on
>> 192.168.88.0/24 on your Ethernet.)
>>
>> I have tried these guys' java script:
>>      http://www.ubnt.com/downloads/discovery/ubnt-discovery-v2.3.zip
>> It runs but doesn't find anything.   Ran it in an XP VM too
>> and it struck out there either.
>>
>> Does anyone know how to get all the mac addresses on your
>> Ethernet, even the ones configured on another network?
>>
>> Many thanks,
>> -T
>
> MAC is layer2 so you cannot get the MAC from a different subnet, however you can detect smb enabled system with the following command
>
> $ sudo nmap -sU --script nbstat -p137 $subnet
> $ nmap -sn --script address-info $local_subnet
>
> or with http://www.inetcat.net/software/nbtscan.html
> $ nbtscan $subnet
>
> To get all MAC addresses use the network equipment
>
> Example for cisco:
> # sh mac address-table
> # sh ip arp
>
>
> For long time monitoring / reporting use netdisco, nedi or other tools.
>


Thank you