>>> 4. if we use DHCP, /etc/ifconfig.IF will have the address we have
>>>    obtained via DHCP.  this seems incorrect.
>>IMHO, if you got the address via dhcp, sysinst should set up rc.conf,
>>etc., to enable dhcp on that interface if the user answers "yes" to
>>the keep-using-this-network-config question..
>
>	that is my impression too.  adding dhclient=YES would be the best way.

Not always. For multiple interfaces, you may only want dhcp on one of the 
interfaces - I ran into this adding dhcp to my firewall (see 
http://www.dubbele.com).

I solved this by writing "dhclient xx0" to /etc/rc.local instead (where 
xx0 is the interface in question)

-John