topic Re: finding out mac address of nic card in Operating System - HP-UX

finding out mac address of nic card

Dan Copeland — Tue, 29 Jan 2002 17:18:05 GMT

Admins,

Is there a way to figure out the hardcoded mac address of a nic card w/ the output of uname or something like that (I thought I heard this before)? Not the current mac address of the card, the mac address that the card had when the machine was shipped.

tia,
Frank

Re: finding out mac address of nic card

harry d brown jr — Tue, 29 Jan 2002 17:26:28 GMT

Two solutions:
(1) shut machine off, pull card out, inspect card

(2) Stop the system from overriding the mac address, then shut the machine down and power off, then reboot, and use lanscan to find it.

live free or die
harry

Re: finding out mac address of nic card

Uday_S_Ankolekar — Tue, 29 Jan 2002 17:41:39 GMT

Hi,
lanscan would do it..

-USA..

Re: finding out mac address of nic card

harry d brown jr — Tue, 29 Jan 2002 17:51:44 GMT

Uday,

Not if it's overridden. Which I do when I have to replace a nic in a firewall where the IP is bound to a mac.

live free or die
harry

Re: finding out mac address of nic card

Philip Kernohan — Wed, 30 Jan 2002 20:35:57 GMT

Frank,

sorry I don't know any method of obtaining the actual MAC on the card but I'm throwing this idea out there which would require some testing as it's a bit of a hack ...

Could write a startup script for /sbin/rc?.d/SXXX100basequery (e.g.) and associated /sbin/init.d/100basequery to query the card before any of the '100conf' startup scripts modify the MAC.

This could then insert the info into /etc/rc.log for future reference.

This has the disadvantage of only logging this on a boot up. You **could** also modify the standard '100conf' scripts but this is subject to HP-UX patching etc. so I would advise against that.

Hope that helps.

Regards,
PK

Re: finding out mac address of nic card

Steven Sim Kok Leong — Wed, 30 Jan 2002 23:21:49 GMT

Hi,

The surest way is to disconnect the LAN card from your system and look at the imprinted MAC address :-)

This aside, it is rare to have MAC addresses modified on HP-UX servers. lanscan should be the easy way of achieving this information.

If you are afraid of applications changing the MAC address (somehow), then shutdown to single-user mode (or maintenance mode) whereby the network is not activated and subsequently performing a lanscan.

Hope this helps. Regards.

Steven Sim Kok Leong

Re: finding out mac address of nic card

mark lenderman_3 — Wed, 12 Jan 2005 13:07:08 GMT

You will find the MAC address inside the cstm utility. Run cstm....you'll find it.

Mark L.

Re: finding out mac address of nic card

Pete Randall — Wed, 12 Jan 2005 13:15:03 GMT

Mark,

I'm not sure cstm was available 3 years ago!

;^)

Pete

Re: finding out mac address of nic card

Rita C Workman — Wed, 12 Jan 2005 15:33:22 GMT

Ah...this is a hoot.

I finally get 5 minutes to get on the Forums and I stumble across a 3 year old resurection....

Good Eyes Pete !!
Say Hi to Jill for me !
Rgrds,
Rita