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

Ruben Safir ruben at mrbrklyn.com
Sat Aug 29 22:07:42 PDT 2009


On Sat, Aug 29, 2009 at 07:42:29PM -0700, Rick Moen wrote:
> Quoting Ruben Safir (ruben at mrbrklyn.com):
> 
> > Yeah - but then you have to make sure your DHCP server doesn't step on
> > that address and vice-versa.
> 
> Which basically amounts to "possessing the ability to count".
> (It's not exactly brain surgery to give, say, high IPs 200-254 to
> DHCPd and then allocate static IPs from "2" upwards.)
> 


It used to be at NYU when I was trying to keep track of 400 devices and
my crack tech support guys would decide on their own to give static IP
addresses to printers and MS boxes in the deans office.



> > The hard thing is to sometimes find the mac address of hardware.
> 
> Er, do that the easy way, Ruben:  Collect them from your ARP cache.
> 
> [rick at linuxmafia]
> ~ $ /usr/sbin/arp 
> Address                  HWtype  HWaddress           Flags Mask            Iface
> airport                  ether   00:03:93:e1:8c:59   C                     eth1
> 198.144.195.185          ether   00:03:6c:7b:24:70   C                     eth1
> [rick at linuxmafia]
> ~ $

Ahh

I forgot about that.  Why is RARP dead?  I used to find unreported
Novell and CIFS devices on the network using RARP.

Ruben

> 
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