8 ms·

MAC Address Vendor Lookup

60 points by night-rider 3y ago

thinkingkong 3y ago
My preferred mechanism is the basic text registry file [1] followed by cmd-f or grep. 1. https://standards-oui.ieee.org/ https://standards-oui.ieee.org/
- laydn 3y ago
  I wish this text file had a last-updated-date in it. Just recently we had a OUI chip which was being used in one of our boards, which was throwing off our post-production automated tests. Turns out the vendor added a new OUI, but didn't update all the references to its datasheets on their website. Took us a while to figure out what the problem was.
  - butz 3y ago
    Maybe "Last-Modified" header combined with "ETag" would be good enough alternative?
orev 3y ago
I happened to run across this yesterday, and it looks nice. However, it would be nice if it could accept different common formats so they don’t need manual editing, such as having - as a separator instead of :.
- numlock86 3y ago
  I use https://www.wireshark.org/tools/oui-lookup.html https://www.wireshark.org/tools/oui-lookup.html exactly because of that reason.
- oxygen_crisis 3y ago
  It does, doesn't it? Best I can tell, it does care at all what formatting symbols you use or don't use. https://maclookup.app/search/result?mac=9436cc000000 https://maclookup.app/search/result?mac=9436cc000000 https://maclookup.app/search/result?mac=94-36-cc-00-00-00 https://maclookup.app/search/result?mac=94-36-cc-00-00-00 https://maclookup.app/search/result?mac=94---36::-:cc https://maclookup.app/search/result?mac=94---36::-:cc
alrs 3y ago
I have a tool to generate plausible-but-random MAC addresses that align to the vendor of your choice. https://github.com/alrs/plausible https://github.com/alrs/plausible
alyandon 3y ago
I got tired of Cableco, Inc. tech support identifying my router by mac address and ultimately them telling me to reboot/replace/reset my router rather than troubleshoot the actual issue. So, I set my router's mac address to something that matched an ancient IBM mainframe. Fun conversations ensued.
- slt2021 3y ago
  how were you able to change mac, are you in the US? I thought DOCSIS modems have disabled this function in the US
  - alyandon 3y ago
    Specifically, the DOCSIS cable modem was rented from the cable company and it was reporting the CPE MAC address that it sees connected to it. In this case, it was reporting the MAC address of my router and the CSR on the phone would look up the brand of the router to provide specific instructions on how to reboot/reset.
- tristor 3y ago
  I'd love to know more about the fun conversations. Did you blog on this?
  - alyandon 3y ago
    Unfortunately, no. The typical interaction was the CSR requesting that I waste a bunch of time logging into the router, verifying a bunch of settings and requesting that I reboot the thing before continuing to troubleshoot my problem. They'd never take my word for it that I had already verified things before calling in so it was a complete waste of my time. By changing the MAC address of my router, the CSR would generally pause in the middle of their script and ask me what brand router I had. I would tell them I wasn't sure but it was a really big box and said IBM on the side and then they'd give up and continue to the next phase of troubleshooting. I'm a terrible person.
- deleted 3y ago
  [deleted]
FuriouslyAdrift 3y ago
Arul's Utilities have been around for a long long time... fyi https://aruljohn.com/mac.pl https://aruljohn.com/mac.pl
afgrant 3y ago
Is this any better than the Wireshark database? https://www.wireshark.org/tools/oui-lookup.html https://www.wireshark.org/tools/oui-lookup.html
starfallg 3y ago
This is just another website that monetizes freely available information.
dilyevsky 3y ago
Fun fact - the NSA oui prefix is 00:20:91
johnklos 3y ago
Sorry, but a MAC address page doesn't need cookies, nor cloudflareinsights.com, nor buysellads.net, nor carbonads.{com,net}, nor a completely ridiculous amount of Javascript. There are plenty of better sites to use, such as Wireshark's: https://www.wireshark.org/tools/oui-lookup.html https://www.wireshark.org/tools/oui-lookup.html
- deleted 3y ago
  [deleted]
teddyh 3y ago
The go-to page for this used to be Mike Patton’s page: <http://www.mit.edu/~map/Ethernet/ http://www.mit.edu/~map/Ethernet/>

60 points by night-rider 3y ago

My preferred mechanism is the basic text registry file [1] followed by cmd-f or grep. 1. https://standards-oui.ieee.org/ https://standards-oui.ieee.org/

laydn 3y ago
I wish this text file had a last-updated-date in it. Just recently we had a OUI chip which was being used in one of our boards, which was throwing off our post-production automated tests. Turns out the vendor added a new OUI, but didn't update all the references to its datasheets on their website. Took us a while to figure out what the problem was.
- butz 3y ago
  Maybe "Last-Modified" header combined with "ETag" would be good enough alternative?

orev 3y ago

I happened to run across this yesterday, and it looks nice. However, it would be nice if it could accept different common formats so they don’t need manual editing, such as having - as a separator instead of :.

numlock86 3y ago
I use https://www.wireshark.org/tools/oui-lookup.html https://www.wireshark.org/tools/oui-lookup.html exactly because of that reason.
oxygen_crisis 3y ago
It does, doesn't it? Best I can tell, it does care at all what formatting symbols you use or don't use. https://maclookup.app/search/result?mac=9436cc000000 https://maclookup.app/search/result?mac=9436cc000000 https://maclookup.app/search/result?mac=94-36-cc-00-00-00 https://maclookup.app/search/result?mac=94-36-cc-00-00-00 https://maclookup.app/search/result?mac=94---36::-:cc https://maclookup.app/search/result?mac=94---36::-:cc

alrs 3y ago

I have a tool to generate plausible-but-random MAC addresses that align to the vendor of your choice. https://github.com/alrs/plausible https://github.com/alrs/plausible

alyandon 3y ago

I got tired of Cableco, Inc. tech support identifying my router by mac address and ultimately them telling me to reboot/replace/reset my router rather than troubleshoot the actual issue. So, I set my router's mac address to something that matched an ancient IBM mainframe. Fun conversations ensued.

slt2021 3y ago
how were you able to change mac, are you in the US? I thought DOCSIS modems have disabled this function in the US
- alyandon 3y ago
  Specifically, the DOCSIS cable modem was rented from the cable company and it was reporting the CPE MAC address that it sees connected to it. In this case, it was reporting the MAC address of my router and the CSR on the phone would look up the brand of the router to provide specific instructions on how to reboot/reset.
tristor 3y ago
I'd love to know more about the fun conversations. Did you blog on this?
- alyandon 3y ago
  Unfortunately, no. The typical interaction was the CSR requesting that I waste a bunch of time logging into the router, verifying a bunch of settings and requesting that I reboot the thing before continuing to troubleshoot my problem. They'd never take my word for it that I had already verified things before calling in so it was a complete waste of my time. By changing the MAC address of my router, the CSR would generally pause in the middle of their script and ask me what brand router I had. I would tell them I wasn't sure but it was a really big box and said IBM on the side and then they'd give up and continue to the next phase of troubleshooting. I'm a terrible person.
deleted 3y ago
[deleted]

FuriouslyAdrift 3y ago

Arul's Utilities have been around for a long long time... fyi https://aruljohn.com/mac.pl https://aruljohn.com/mac.pl

afgrant 3y ago

Is this any better than the Wireshark database? https://www.wireshark.org/tools/oui-lookup.html https://www.wireshark.org/tools/oui-lookup.html

starfallg 3y ago

This is just another website that monetizes freely available information.

dilyevsky 3y ago

Fun fact - the NSA oui prefix is 00:20:91

johnklos 3y ago

Sorry, but a MAC address page doesn't need cookies, nor cloudflareinsights.com, nor buysellads.net, nor carbonads.{com,net}, nor a completely ridiculous amount of Javascript. There are plenty of better sites to use, such as Wireshark's: https://www.wireshark.org/tools/oui-lookup.html https://www.wireshark.org/tools/oui-lookup.html

deleted 3y ago
[deleted]

teddyh 3y ago

The go-to page for this used to be Mike Patton’s page: <http://www.mit.edu/~map/Ethernet/ http://www.mit.edu/~map/Ethernet/>