This is not really a bug, just a suggestion.

dhcpd(8) says:
COMMAND LINE
        The  names  of  the network interfaces on which dhcpd should 
listen for broadcasts *may* be specified on the command line.  This 
should be done on systems where dhcpd is unable to identify 
non-broadcast interfaces, but *should not be required* on other systems.

If I don't specify interfaces to listen on, dhcpd listens only on 
interfaces, for whose it finds subnet declaration in dhcpd.conf.
For each interface where's no corresponding subnet declaration, dhcpd 
spits out an *error*
"No subnet declaration for <interface>. Ignoring requests on 
<interface>.  If this is not what you want, ..."
This should not IMHO be an *error*, but only *info*, because there's 
quite a big chance that this is exactly what user wants.

If there's no matching subnet declaration for *any* interface dhcpd 
spits our fatal error
"Not configured to listen on any interfaces!"
which is all right.

With regards,
Jiri Popelka
Red Hat, inc.