Change MAC address in 4.0?

[Steven Sartorius <ssartor%bellatlantic.net@localhost>]

Hi,

I just recently had Verizon FIOS internet installed (20/5, not bad!)  
and now I'm trying to get it to play nicely with my 4.0 home server.   
When Verizon installs FIOS they give you an enormous brick of a  
router, an Actiontec ML424WR.  Rather than be forced to use this I  
just want to continue to have my NetBSD box handle firewall and NAT  
duties.  FIOS (at least my install) is DHCP based so I'm able to pull  
an IP address from Verizon by plugging the Cat5e from the ONT into  
the WAN port on the Actiontec.  I'm unable to do this with my NetBSD  
box:

Feb 16 00:22:34 shuttle dhclient: DHCPDISCOVER on vr0 to  
255.255.255.255 port 67 interval 4
Feb 16 00:22:38 shuttle dhclient: DHCPDISCOVER on vr0 to  
255.255.255.255 port 67 interval 5
Feb 16 00:22:43 shuttle dhclient: DHCPDISCOVER on vr0 to  
255.255.255.255 port 67 interval 14
Feb 16 00:22:57 shuttle dhclient: DHCPDISCOVER on vr0 to  
255.255.255.255 port 67 interval 12
Feb 16 00:23:09 shuttle dhclient: DHCPDISCOVER on vr0 to  
255.255.255.255 port 67 interval 15
Feb 16 00:23:24 shuttle dhclient: DHCPDISCOVER on vr0 to  
255.255.255.255 port 67 interval 11
Feb 16 00:23:35 shuttle dhclient: No DHCPOFFERS received.
Feb 16 00:23:35 shuttle dhclient: No working leases in persistent  
database - sleeping.

Reading some of the posts on dslreports suggests that some people  
have been able to pull an IP from Verizon by cloning the MAC address  
of the router.  How can I do this in NetBSD 4.0?  A quick google  
turned up nothing useful -- some mention of 'netgraph' in FreeBSD but  
nothing for NetBSD.  Doesn't look like the NetBSD version of  
'ifconfig' has the 'ether' option....

Any help much appreciated.

thanks,

Steve