LinuxQuestions.org - DHCP Unable to add forward map from XXXXXX to XXXXX timed out

Hello there,

I´m configuring a DHCP server with 2 hosts. By the moment, for incompatibility issues, only use one node.

But sometimes the messages logs shows the following error:

Jun 12 09:32:52 dhcp01 dhcpd: DHCPINFORM from [IP] via eth0
Jun 12 09:32:52 dhcp01 dhcpd: DHCPACK to [IP] (44:37:e6:e5:49:84) via eth0
Jun 12 09:32:55 dhcp01 dhcpd: DHCPINFORM from [IP] via eth0
Jun 12 09:32:55 dhcp01 dhcpd: DHCPACK to [IP] (50:26:90:17:71:7b) via eth0
Jun 12 09:32:55 dhcp01 dhcpd: DHCPINFORM from [IP] via eth0
Jun 12 09:32:55 dhcp01 dhcpd: DHCPACK to [IP] (50:26:90:17:71:7b) via eth0
Jun 12 09:32:56 dhcp01 dhcpd: DHCPINFORM from [IP] via eth0
Jun 12 09:32:56 dhcp01 dhcpd: DHCPACK to [IP] (50:26:90:17:71:7b) via eth0
Jun 12 09:32:58 dhcp01 dhcpd: Unable to add forward map from USER02 [IP] timed out
Jun 12 09:32:58 dhcp01 dhcpd: DHCPREQUEST for [IP] from a0:d3:c1:30:30:3d (USER02) via eth0
Jun 12 09:32:58 dhcp01 dhcpd: DHCPACK on [IP] to a0:d3:c1:30:30:3d (USER02) via eth0

conf dhcpd file:

Code:

## dhcpd.conf -- dhcp01.ine.es



ddns-update-style interim;

ignore client-updates;

authoritative;

#option option-150 code 150 = text ;

#log-facility local4;

#dhcp02

option dhcp-server-identifier 10.58.79.232;

#dhcp01

option dhcp-server-identifier 10.58.79.233;



#failover peer "failover01" {

#        primary;

#        address dhcp01.ine.es;

#        port 1068;

#        peer address alamo.ine.es;

#        peer port 1069;

#        max-response-delay 180;

#        max-unacked-updates 10;

#        mclt 600;

#        split 120;

#        load balance max seconds 3;

#}



subnet 10.58.72.0 netmask 255.255.248.0 {



        option routers                  10.58.79.230;

        option subnet-mask              255.255.248.0;



        option nis-domain              "domain.es";

        option domain-name              "domain.es";

        option domain-name-servers      10.59.172.46, 10.59.173.47;



        #option time-offset              -18000; # Eastern Standard Time

        option ntp-servers              10.59.172.46;



        option netbios-name-servers    dhcp01;

        option netbios-node-type 8;

        #min-lease-time 43200;

        #default-lease-time 86400;

        #default-lease-time 259200;

        default-lease-time 2592000; # 30 dias. Dessde 25/04/2017

        #max-lease-time 86400;

        #max-lease-time 259200;  

        max-lease-time 2592000;    

 24/04/2017

        one-lease-per-client true;









      

        pool {





                range 10.58.72.1 10.58.72.253;

                range 10.58.73.1 10.58.73.253;

                range 10.58.74.1 10.58.74.253;

                range 10.58.75.1 10.58.75.253;

                range 10.58.76.1 10.58.76.150;



                

#                failover peer "failover01";

                deny dynamic bootp clients;

        }



}