option domain-name "lan.local";
option domain-name-servers <NS1>, <NS2>;

default-lease-time 28800;
max-lease-time 86400;

ddns-update-style none;
ddns-updates off;

one-lease-per-client true;

authoritative;

allow booting;
allow bootp;

log-facility local7;

option log-servers <STAT>;

option ntp-servers <NTP>;

use-host-decl-names off;

ping-check false;

on commit {
    set ClientIP = binary-to-ascii(10, 8, ".", leased-address);
    set ClientMac = binary-to-ascii(16, 8, ":", substring(hardware, 1, 6));
    set ClientHostName = pick-first-value(option host-name,"undef");
    execute("/usr/local/scripts/dhcp-hook.sh", "add", ClientIP, ClientMac, ClientHostName);
    }

on release {
    set ClientIP = binary-to-ascii(10, 8, ".", leased-address);
    set ClientMac = binary-to-ascii(16, 8, ":", substring(hardware, 1, 6));
    execute("/usr/local/scripts/dhcp-hook.sh", "del", ClientIP, ClientMac);
    }

on expiry {
    set ClientIP = binary-to-ascii(10, 8, ".", leased-address);
    set ClientMac = binary-to-ascii(16, 8, ":", substring(hardware, 1, 6));
    execute("/usr/local/scripts/dhcp-hook.sh", "del", ClientIP, ClientMac);
    }

log (info, concat("DHCPDLOG - ",binary-to-ascii(10, 8, ".", leased-address)," - ",pick-first-value(option host-name,"undef")," - ",binary-to-ascii (16, 8, ":", substring(hardware, 1, 7))," - at switch - ",binary-to-ascii(16,8,":",suffix(option agent.remote-id,6))," - vlan - ",binary-to-ascii(10,16,"",substring(suffix(option agent.circuit-id,4),0,2))," - port - ",binary-to-ascii(10,8,"",suffix (option agent.circuit-id, 1))," - via - ",binary-to-ascii(10,8,".",packet (24,4))));

# WPAD definition
option wpad code 252 = text;
# Suppress WPAD activity - no cache, no DNS.
option wpad "\n\000";

option space MSFT;
#release ip if shutdown
option MSFT.release-on-shutdown code 2 = unsigned integer 32;

class "MSFT" {
match if substring(option vendor-class-identifier, 0, 4) = "MSFT";
# They put 252 on the DHCPINFORM's, but not on the DHCPREQUEST's
# PRL.  So we over-ride the PRL to include 252 = 0xFC, which will also
# suppress the DHCPINFORMS!
option dhcp-parameter-request-list =
concat(option dhcp-parameter-request-list, fc);
# Make DHCP work on dual boot machines (Linux & Windows2000)
# Microsoft proprietary stuff:
send fqdn.server-update true;
send fqdn.no-client-update true;
vendor-option-space MSFT;
option MSFT.release-on-shutdown 1;
}

shared-network "company" {

#office
subnet 192.168.1.0 netmask 255.255.255.0 {
    option routers 192.168.1.1;
    authoritative;
    include "/etc/dhcp/stat/192.168.1.0.conf";
    }

}