isc-dhcp server

[perl-list]

Probably going to need some log messages of a device that changes IPs before the end of the lease. Probably should include logs from the start of the original lease, and the time period that the IP changes. 

Wouldn't hurt to also throw in the lease info from the dhcpd.leases file for the original IP and the changed IP. 

> From: "Samuel Motta" <samuel at apoiotatico.com.br>
> To: dhcp-users at lists.isc.org
> Sent: Friday, April 24, 2015 4:52:00 PM
> Subject: isc-dhcp server

> Hi everybody!
> I´m using isc-dhcp-server version 4.2.2 on two servers (same version on both
> servers and fail-over peers)
> But , I´m having problems with the address that changes before expiration time
> of the lease.
> For example an android cell phone with the MAC Address f8:f1:b6:92:3d:e8 was
> with the IP 192.168.0.103 with the initial lease time 2015/03/23 and end lease
> time 2015/04/22.

> At 2015/03/25 the IP changed to 192.168.0.105 at both servers with initial lease
> time 2015/03/25 and end lease time 2015/04/24.

> It don´t happens everytime, but sometimes it happens and with different clients.
> My /mnt/dhcp/subnet file and /mnt/dhcp/hosts are available on both servers.
> What´s wrong on my configuration files?

> Follow my primary server dhcpd.conf

> ddns-update-style none;
> interfaces="eth0";
> authoritative;
> log-facility local7;
> failover peer "dhcp-failover" {
> primary;
> address 192.168.0.3;
> port 647;
> peer address 192.168.0.2;
> peer port 648;
> max-response-delay 60;
> max-unacked-updates 10;
> load balance max seconds 3;
> mclt 3600;
> split 128;
> }
> include "/mnt/dhcp/subnet";
> include "/mnt/dhcp/hosts";

> and my secondary server dhcpd.conf

> ddns-update-style none;
> authoritative;
> log-facility local7;
> failover peer "dhcp-failover" {
> secondary;
> address 192.168.0.2;
> port 648;
> peer address 192.168.0.3;
> peer port 647;
> max-response-delay 60;
> max-unacked-updates 10;
> load balance max seconds 3;
> }
> include "/mnt/dhcp/subnet";
> include "/mnt/dhcp/hosts";

> here my /mnt/dhcp/subnet file

> subnet 192.168.0.0 netmask 255.255.255.0 {
> option domain-name-servers 192.168.0.4, 192.168.0.254, 192.168.0.253;
> option netbios-name-servers 192.168.0.4 ;
> option routers 192.168.0.254;
> option broadcast-address 192.168.0.255;
> pool {
> failover peer "dhcp-failover";
> default-lease-time 3888000;
> max-lease-time 3888000;
> range 192.168.0.11 192.168.0.200;
> }
> }

> here my /mnt/dhcp/hosts file

> host plasma-eth {
> hardware ethernet 00:e0:4b:24:e8:02;
> fixed-address 192.168.0.235;
> }

> My best regards,

> Samuel Motta.

> _______________________________________________
> dhcp-users mailing list
> dhcp-users at lists.isc.org
> https://lists.isc.org/mailman/listinfo/dhcp-users
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