Re: [Qemu-devel] QEMU - macaddr= does not work - HELP

[Albert Graham <albert.graham@g-b.net>]

Sorry, I found the problem, I was appending the "macaddr=" parameter to the "-net tap" options instead of the "-net nic" 
options as documented :(

e.g.

qemu -boot c -hda /hd1 -m 1024  -localtime -net nic -net tap,macaddr1=52:54:00:12:34:01


instead of

qemu -boot c -hda /hd1 -m 1024  -localtime -net nic,macaddr1=52:54:00:12:34:01 -net tap


Thanks.

Albert.



Albert Graham wrote:
> 
> I'm trying to get the macaddr= parameter to work (with -net tap), but it 
> does not seem to pass the specified MAC address to the underlying 
> virtual NIC (in my case ne2000 pci using)
> 
> 
> This would not normally be required for a single instance if QEMU, but I 
> want multiple instances per server as well as across multiple machines. 
> Ths MAC is what the DHCP server keys off and I want to control the IP 
> address of the guests via DHCP.
> 
> I'm using Fedora Core 6 as a HOST and Fedora 8 as guests.
> 
> The guest ifcfg-eth0 looks like this:
> 
> DEVICE=eth0
> BOOTPROTO=dhcp
> ONBOOT=yes
> 
> Note, the HWADDR= parameter is removed.
> 
> I've tested this with 0.8.2 (latest version for Fedora 6) x86
> 
> I also compiled the 0.9.0 source and that had the same results  - i.e. 
> it did not work.
> 
> The problem is that whatever MAC address is used via the macaddr= 
> parameter, it is ignore and using "info network" via the QEMU monitor 
> (CTRL+ALT+2) shows the original hard coded "52:54:00:12:34:56" instead 
> of the one that I specified.
> 
> You should note that I am only using a single virtual NIC per guest, and 
> I imagine that using multiple NICs in a guest DOES allow you to set the 
> MAC address, but I have not tested this.
> 
> I'm pretty sure this is a BUG in the code.
> 
> How can I solve this problem ?
> 
> Thanks in Advance.
> 
> Albert.
> 
> 
> ps. Also, the latest kernel-kqemu panics Fedora 8 - just after 
> compressing kernel.. (and as such I do not use kqemu).
> 
> 
> 
> 
>