Extracting agent.circuit-id and compare to dhcp leases!

[Frank Bulk]

I think most people would recommend generating an include file from your
database once an hour or so.  Then it should be possible to do what you
describe.
 
Frank

  _____  

From: dhcp-users-bounce at isc.org [mailto:dhcp-users-bounce at isc.org] On Behalf
Of Mattias Ellerot
Sent: Friday, January 18, 2008 8:13 AM
To: 'dhcp-users at isc.org'
Subject: Extracting agent.circuit-id and compare to dhcp leases!



Hi!

 

Now when I managed to extract agent.circuit-id I wan't it to compare the
agent.circuit-id with a list that defines what IP the customer should have.
To begin with it would be enough with a text file but preferable would be a
connection to a mysql database.

For instance have we a provisioning system that defines the agent.circuit-id
on the customer port and we are able to set a specific IP for it also. I'm
waiting for the table indexes so I know what I need to pick out from the db,
but for now I need to see that the DHCP server is able to set a static ip
through DHCP. 

Here's the test config from dhcpd.conf

 

log-facility local7;

ddns-update-style none;

authoritative;

option domain-name "bbtnet.se";

option domain-name-servers 77.110.38.205, 85.11.1.11;

 

default-lease-time 28800;

max-lease-time 28800;

 

# Privat kunder - Tranemo

subnet 77.110.36.0 netmask 255.255.255.0 {

                             option domain-name "pp.tran.bbtnet.se";

                             option subnet-mask 255.255.255.0;

                             option routers 77.110.36.1;

        log ( info, concat( "Lease for ", binary-to-ascii (10, 8, ".",
leased-address), " is allocated to customer: ", option agent.circuit-id));
allow client-updates;

                             ddns-updates off;

                             default-lease-time 28800;

                             range 77.110.36.2 77.110.36.254;

                             }

 

Another thing, if the customer number is not in the list it shouldn't get an
IP.

 

With my best regards

 

Mattias Ellerot

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