[conspire] corrected to HP LaserJet4M Plus Re: HP LaserJet4 - CUPS lists printer twice

Ruben Safir ruben at mrbrklyn.com
Fri Aug 28 19:09:12 PDT 2009

On Fri, Aug 28, 2009 at 05:32:21PM -0700, Rick Moen wrote:
> Quoting Ruben Safir (ruben at mrbrklyn.com):
> > in /etc/dhcpd.conf
> > 
> > host lazerjet{
> >                 hardware ethernet 00:24:ed:73:c2:8e;
> >                 fixed-address;
> >         }
> Yes, I even consider, from time to time, the idea of having only one
> fixed-IP machine (running dhcpd), everything else on DHCP with a
> fixed-address specifier tied to each individual machine's MAC address,
> as you have above.
> The disadvantages:
> 1.  If the DHCP daemon goes down, your entire name system collapses as
> soon as IP leases start to expire.
> 2.  Any time you change a device's ethernet hardware, you have to update
> /etc/dhcpd.conf to account for the changed MAC address.
> 3.  Avoidable DHCP traffic.
> In general, if it's generally useful for a device to always keep the
> same IP -- which is definitely the case for a networked printer -- then,
> IMO, it's far easier and less hassle to just statically IP it and then
> just leave it alone.

Yeah - but then you have to make sure your DHCP server doesn't step on
that address and vice-versa.  For my purposes. it is easier to have it
all centralized in a single place.  vim 6yy p ...edit as needed.

The hard thing is to sometimes find the mac address of hardware.


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