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I would like to rename a device on my network as I have several devices from the same mfg. For example, an Asus wireless router shows the same mfg name as an Asus motherboard (connected by Ethernet), as such:

Nmap scan report for 192.168.1.110
Host is up (0.0013s latency).
MAC Address: (mac) (Asustek Computer)
Nmap scan report for 192.168.1.105
Host is up (-0.100s latency).
MAC Address: (different mac) (Asustek Computer)

The computer is running Ubuntu MATE, so while I am not sure that the router can be renamed (since it's a limited embedded device after all), the computer might have tools to do so. However, I am not sure how it is to be done. Thanks for your help!

xen20
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  • I don't think that it is the devices that answers back with ID, but nmap that has a database over which MAC address ranges that belongs to which manufactures. – Soren A Feb 08 '19 at 11:38

1 Answers1

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Those are not "names" on a network that you can find with a name resolution (DNS).

nmap is just reporting the the manufacturer for the mac addresses it found. Specifially, nmaplooks up the prefix - first 3 hex values - of the address in this database.

If, for some reason, you still need to have different manufacturers show up after an nmapscan, you can change/spoof your mac address in Ubuntu. Your Asus router might also have an option for this.

If you want "names" (i.e. myhost.example.com) on your network, then we are talking about DNS records.

I'd suggest looking into

Robert Riedl
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  • Thank you for your detailed reply. I might go the DNS route - the last option sounds most applicable. As to the MAC address being the source for the "names". the more you know :) – xen20 Feb 08 '19 at 22:28