* mac address
@ Gregory Nowak
` Ari Moisio
0 siblings, 1 reply; 2+ messages in thread
From: Gregory Nowak @ UTC (permalink / raw)
To: speakup
Hi all,
I decided today to find out the MAC address of my primary nic. To my surprise, ifconfig reports a different hwaddr from that reported by arp.
The hwadr is supposed to be the MAC address, right? Why are ifconfig and arp reporting different hardware addresses? How do I find out my nic's real mac address?
I've looked at the networking howto and at the networking overview howto, but didn't find anything about this there. If someone could please explain this, I would appreciate it. Thanks in advance.
Greg
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: mac address
mac address Gregory Nowak
@ ` Ari Moisio
0 siblings, 0 replies; 2+ messages in thread
From: Ari Moisio @ UTC (permalink / raw)
To: speakup
Hi!
Gregory Nowak 05.06.02:
>The hwadr is supposed to be the MAC address, right? Why are ifconfig
>and arp reporting different hardware addresses? How do I find out my
>nic's real mac address?
Arp will tell you hw addresses of other computers in same network. It
is used when sendin ethernet frames to other computer; in ethernet
there is no ip addresses, only hardware or MAC addresses.
YOu can find find than address by ifconfig or grepping 'eth' from
dmesg:
dmesg | grep eth
HTH
--
Mr. Ari Moisio, Niittykatu 5, 41160 Tikkakoski, +358-40-5055239
ari.moisio@iki.fi http://www.iki.fi/arimo PGP-keyID: 0x3FAF0F05
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