Re: [LUG] Mozilla Printers

[Simon Waters <Simon@xxxxxxxxxxxxxxxxxxxx>]

Mark Evans wrote:
> > They have a unique MAC address - ergo a solution exists -
> > although you'll have to record it with DHCP or get DHCPD to
> > allocate IP addresses based on MAC address.
>
> With dynamic IP address assignment you could find out the MAC
> address either from the dhcp lease file or by looking in the
> ARP cache. Which is easily accessable under Linux as
> /proc/net/arp.

The trouble with ARP cache is that it covers only immediately
adjacent bits of network, so if you have DHCP relay agents it
won't work, but DHCP will still record the information I
believe. So you'd build the tools on the more general case, for
when you take over all of educational computing in Devon ;-)

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