isc_dhcp Module

The isc_dhcp module reads ISC DHCP configuration files.

When the module is listed in the recv Discover section, as "isc_dhcp.authorize" (sorry), it will look up the client by client-identifier, or failing that, hardware ethernet. If found, the module will apply a fixed-address option to assign an IP address.

Leases are not handled by this module. Instead, you should use an "ip pool" module in the send Offer" section. Then after an IP address has been allocated, list `isc_dhcp (without the authorize).

The module will then apply any matching options to the packet.

Configuration Settings

moddir: Search for files in a subdirectory of mods-config which matches this instance of the files module.
filename: The ISC DHCP configuration file
debug: For developers, we print out what we’re parsing.
pedantic: Be harsh or forgiving about what we parse

The isc_dhcp module implements only a small subset of the ISC DHCP configuration file commands. However, the module parses just about everything that is allowable in the ISC DHCP configuration.

The goal here is to allow an easy migration from ISC DHCP to FreeRADIUS, by just copying over "dhcpd.conf". FreeRADIUS will at least start, instead of complaining about everything.

If pedantic = true, then the module will fail with an error when it sees a command it knows it can’t implement. The module will also issue warnings for commands which are ignored (e.g. OMAPI ones, "listen on port X", and similar). The module will also issue warnings for commands which should be implemented at some point.

If a command does not produce any errors or warnings, it is implemented and supported.

The default is pedantic = false

Default Configuration

isc_dhcp {
	moddir = ${modconfdir}/${.:instance}
	filename = ${moddir}/dhcpd.conf
	debug = true
#	pedantic = true
}