Problem about failover with dynamic bootp client

Xiao Lv Xiao.Lv at
Thu Jan 5 03:10:35 UTC 2012

I have two DHCP Server 4.2.3,  serve for two subnet (PC and IP Phone VLAN) and configured Failover feature.

But I get "no free leases" error.

Jan  4 21:21:02 DHCP-Server dhcpd: DHCPDISCOVER from 00:14:6a:e9:6f:06 via network no free leases
Jan  4 21:21:02 DHCP-Server dhcpd[14098]: DHCPDISCOVER from 00:14:6a:e9:6f:06 via network no free leases

This is my dhcpd.conf:

ddns-update-style interim;
ignore client-updates;
one-lease-per-client false;

failover peer "dhcp" {
        port 520;
        peer address;
        peer port 519;
        max-response-delay 60;
        max-unacked-updates 10;
        mclt 600;
        split 128;
        load balance max seconds 3;
include "/etc/dhcp/dhcpd.master";

This is my dhcpd.master

option domain-name-servers,;
option tftp-server code 150 = IP-ADDRESS;

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

subnet netmask {
  option routers;
  option subnet-mask;
  option domain-name-servers,;
  pool {
    failover peer "dhcp";

#IP Phone VLAN
subnet netmask {
  option broadcast-address;
  option routers;
  option tftp-server;
  pool {
    failover peer "dhcp";
    allow dynamic bootp clients;
    allow unknown-clients;

Someone tell me failover can support dynamic bootp client after DHCPD 3.1.

Who can help me to resolve the problem?  or DHCPD 4.x still can't support dynamic bootp client with failover.


This email and any attachments may be confidential and/or legally privileged. If you have received this e-mail and you are not a named addressee, please inform the sender of this email by sending a return email to the address above and then delete the e-mail and your response from your system. If you are not a named addressee you must not use, disclose, distribute, copy, print or rely on this e-mail. Any views or opinions presented are solely those of the author. Any statements made, or intentions expressed in this communication may not necessarily reflect the view of Easynet. No content herein will bind Easynet or any associated company unless confirmed by the execution of a formal contract by Easynet. Any figures or amounts given in this email are quotations only and are subject to change. Although Easynet routinely screen for viruses, addressees should scan this e-mail and any attachments for viruses. Easynet make no representation or warranty as to the absence of viruses in this e-mail or any attachments. Please note that to ensure regulatory compliance and for the protection of our customers and business, we may monitor and read e-mails sent to and from our server(s). In this email, Easynet means Easynet Limited which is a company incorporated in England and Wales with company number 02954343 and its registered office at Chancellor House, 5 Thomas More Square, London E1W 1YW.

More information about the dhcp-users mailing list