spoofed MAC on a dhcp interface

[James Housley]

Charlie Schluting wrote:
> Hi :)
> 
> /etc/rc.conf:
> ifconfig_xl0="ether 00:11:11:11:11:11"
> ifconfig_xl0="DHCP"
> 
> The above doesn't work..
> I'm trying to set the mac, and then dhcp.. is this the correct way?
> 
> With this config, its not getting the mac assigned to xl0, so I have to 
> stop dhclient, run "ifconfig ether 00:11:11:11:11:11" manually, then 
> dhcp again.

I needed to do the exact thing so I could switch to replace dead NIC 
without having to involve my Cable company.

/etc/rc.conf:
ifconfig_xl0="DHCP"             # DHCP on external interface

The key was created /etc/start_if.xl0:
#!/bin/sh
#
# Needed to fake my MAC at Comcast
#
/sbin/ifconfig xl0 ether 00:80:c8:de:1a:50
/sbin/ifconfig xl0 up

Jim

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