View source for Dhcpd-plugin

== How it works ==
It's a very simple script, it continuously greps ''/var/log/syslog'' looking for DHCPREQUEST/DHCPACK lines.

When finding one it tries to find out if it's a new device (not one already added and not one to be ignored).
Then it sends DCE Event #53(New Mac Address Detected) with params #5(MAC) and #28(IP) to [[DCERouter]].

As far as I know then it's processed somewhere in [[General_Info_Plugin]] (asking for device type, room and other such stuff), after that it creates a device with status set to ''**RUN_CONFIG**''.

After that somebody else will run the configuration script specified in DeviceTemplate. Something like:
 /usr/pluto/bin/configure_snom3xx.pl -d 47- i 192.168.80.253 -m 00:04:13:24:25:e9
That script is responsible to correctly configure Snom320, so it could be used almost immediately.

== New p&p devices ==
For each device that needs to be [[plug&play]] device, we need to:
* create a device template
* add a MAC range in the device template to include such devices
* create a script, as described above, that will be called that will configure the device to be used with LinuxMCE

== Possible problems ==
* Two or more models (with very different configurations) of same manufacturer share same IP range
:Now it's solved by asking the user what kind of device he added via [[plug&play]].
:In future an auto detection script will be needed like the one deciding which [[Cisco]] phone we have, ie. 7960 or 7970, by getting the information from the phone itself, but it still will not be a perfect solution because it relies on certain firmware versions and/or default passwords.
* Same model may have different firmwares, meaning that sometimes the configuration script may fail.
:This can't be solved right now. Usually firmware is not distributable, so you can't force to use a specific version with LinuxMCE. The firmware upgrade needs user interaction and is very delicate operation that may result in trashed equipment (for example power outage in the middle of upgrade)

[[Category: Programmer's Guide]]