Load a custom MAC address

edijs

edijs

Programmer
Hi!

I'd like to hear a way to get FreeBSD to put a custom MAC address for my 3COM NIC on every system bootup. I've already tried to do that in rc.conf, but it doesn't work -- it just hangs the NIC and says "no routing" when I try to ping something. The only way it works is to write like this:

Code: 
ifconfig xl0 link <macaddress>

But that's somewhat inconvenient. Any help would be nice! Thanks!
 
As far as I know that is not possible. A MAC address is something like a serial number and is unique to each device. Why, may I ask, would you need a custom MAC?
 
Isn't a startup script capable of executing console commands (?) - I don't know this script language at all, so ...

I need that to connect the box to a network [temporarily] where only one IP for one MAC address is available.
 
It's called MAC spoofing. In FreeBSD, you can change your MAC address with the `ifconfig <interface> link <address>` command.
 
Yes, I can, but how can I make the system do this at the startup automatically, because, as I mentioned in the initial post, writing this command every time the system boots up is somewhat inconvenient.
 
edijs said:
Yes, I can, but how can I make the system do this at the startup automatically, because, as I mentioned in the initial post, writing this command every time the system boots up is somewhat inconvenient.
Click to expand...
See the rc man page here. You only need to put an executable script in the /usr/local/etc/rc.d directory. FYI, it is not usually a good idea to put custom scripts in the /etc/rc.d

If you follow the instructions in the man page, this should not be too difficult.
 
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