domainname problem, MAC question

deesto · 12-17-2003, 03:01 PM

I have two network-related questions about my FreeBSD 5.1-CURRENT system:

1) When I do an "ifconfig -a" or "arp -a" to determine my NIC card's MAC address, a 'spoofed' MAC shows up (or at least it looks spoofed to me):
ether 0a:00:0a:00:0a:00
Is there another way to discover the "true" MAC address, or to correct this one? As far as I know, I've not done anything purposely to alter the address.

2) On boot, the system reports an error from /etc/rc in determining my local domain name, even though I've set it both in /etc/hosts and /etc/rc.conf (domainname="mydomain.com") and /etc/resolv.conf (domain mydomain.com). Is this correct? If so, why is it that when I type "domainname" the system returns no result, until I manually run "domainname <mydomain>"? How do I set the value and keep the system from complaining?

RJW · 12-17-2003, 05:31 PM

Regarding your MAC address: if that's what the system says it is, then that is what it is.

Your problem is in your `/etc/rc.conf' file. It's not `domainname', but `hostname':

Code:

hostname="mydomain.com"

deesto · 12-17-2003, 05:52 PM

Quote:

Originally posted by RJW
Regarding your MAC address: if that's what the system says it is, then that is what it is.

You'd think, but I find it highly difficult to believe the MAC address "0a:00:0a:00:0a:00" would be unique, which is a requirement for a valid MAC address.
In addition, "arp"s from this box and other boxes with other OSes return the same MAC.

Quote:

Originally posted by RJW
Your problem is in your `/etc/rc.conf' file. It's not `domainname', but `hostname':

Code:

hostname="mydomain.com"

Yes; in addition to having set domainname, I've also got hostname set in /etc/rc.conf as well:
hostname="host.mydomain.com"
Any other ideas?

RJW · 12-18-2003, 06:11 AM

What is the error message?

deesto · 12-18-2003, 09:51 AM

Even though it appears on the screen during each boot, it's not being stored in 'dmesg'... where would I look to find it?
Regardless, I believe the error is "domainname not set", on two successive lines, if I'm not mistaken.

chort · 12-18-2003, 01:20 PM

By the way, that MAC address looks like it might be a multicast MAC addr. I'll look it up later today if I get a chance, but you might want to look into that.

deesto · 12-18-2003, 02:26 PM

I don't know for sure, but it doesn't seem to be according to the list posted here:
http://www.cavebear.com/CaveBear/Eth...multicast.html

RJW · 12-18-2003, 07:27 PM

The error message will be in `/var/log/messages'.

Have you tried commenting out the `domainname' entry in your `/etc/rc.conf' file?

deesto · 12-18-2003, 07:44 PM

Thanks...here's the error:
Dec 17 12:20:29 <host> root: /etc/rc: WARNING: domainname(1) is not set.
Dec 17 12:20:29 <host> root: /etc/rc: WARNING: domainname(1) is not set.

I haven't tried commenting-out the domainname entry. I'l give it a try.
Thank you.