MattiThanks,I hope someone can sort out what goes wrong / howto fix it.Communication log from dhcp server:I suppose that this is what Connman handles differently.As you can see, board gets two leases pretty rapidly, then it gets NTP time and new lease with new IP. Is this problem coming from the fact that when board gets NTP time, it notices that time is over expiration time and it has to drop its lease.Hi!Some more information - lease log from board after re-installation and dhcp server log:
================================
lease {
interface "eth0";
fixed-address 111.111.3.15;
option subnet-mask 255.255.252.0;
option dhcp-lease-time 7200;
option routers 111.111.1.2;
option dhcp-message-type 5;
option dhcp-server-identifier 111.111.1.2;
option domain-name-servers 111.111.1.2;
option broadcast-address 111.111.3.255;
option domain-name "domain.fi";
renew 5 2016/03/11 14:46:10;
rebind 5 2016/03/11 15:41:49;
expire 5 2016/03/11 15:56:49;
}
lease {
interface "eth0";
fixed-address 111.111.3.15;
option subnet-mask 255.255.252.0;
option routers 111.111.1.2;
option dhcp-lease-time 7200;
option dhcp-message-type 5;
option domain-name-servers 111.111.1.2;
option dhcp-server-identifier 111.111.1.2;
option broadcast-address 111.111.3.255;
option domain-name "domain.fi";
renew 5 2016/03/11 14:44:36;
rebind 5 2016/03/11 15:41:52;
expire 5 2016/03/11 15:56:52;
}
lease {
interface "eth0";
fixed-address 111.111.3.11;
option subnet-mask 255.255.252.0;
option routers 111.111.1.2;
option dhcp-lease-time 7200;
option dhcp-message-type 5;
option domain-name-servers 111.111.1.2;
option dhcp-server-identifier 111.111.1.2;
option broadcast-address 111.111.3.255;
option domain-name "domain.fi";
renew 2 2016/05/17 06:39:51;
rebind 2 2016/05/17 07:37:25;
expire 2 2016/05/17 07:52:25;
}
====================
===========================
May 17 08:49:33 ubuntu1 dhcpd: DHCPDISCOVER from 84:eb:18:96:a2:14 via eth1
May 17 08:49:34 ubuntu1 dhcpd: DHCPOFFER on 111.111.3.15 to 84:eb:18:96:a2:14 via eth1
May 17 08:49:34 ubuntu1 dhcpd: DHCPREQUEST for 111.111.3.15 (111.111.1.2) from 84:eb:18:96:a2:14 via eth1
May 17 08:49:34 ubuntu1 dhcpd: DHCPACK on 111.111.3.15 to 84:eb:18:96:a2:14 via eth1
May 17 08:49:36 ubuntu1 dhcpd: DHCPREQUEST for 111.111.3.15 from 84:eb:18:96:a2:14 via eth1
May 17 08:49:36 ubuntu1 dhcpd: DHCPACK on 111.111.3.15 to 84:eb:18:96:a2:14 via eth1
May 17 08:52:16 ubuntu1 dhcpd: DHCPDISCOVER from 84:eb:18:96:a2:14 via eth1
May 17 08:52:16 ubuntu1 dhcpd: ICMP Echo reply while lease 111.111.3.15 valid.
May 17 08:52:16 ubuntu1 dhcpd: Abandoning IP address 111.111.3.15: pinged before offer
May 17 08:52:24 ubuntu1 dhcpd: DHCPDISCOVER from 84:eb:18:96:a2:14 via eth1
May 17 08:52:25 ubuntu1 dhcpd: DHCPOFFER on 111.111.3.11 to 84:eb:18:96:a2:14 via eth1
May 17 08:52:25 ubuntu1 dhcpd: DHCPREQUEST for 111.111.3.11 (111.111.1.2) from 84:eb:18:96:a2:14 via eth1
May 17 08:52:25 ubuntu1 dhcpd: DHCPACK on 111.111.3.11 to 84:eb:18:96:a2:14 via eth1
May 17 09:39:51 ubuntu1 dhcpd: DHCPREQUEST for 111.111.3.11 from 84:eb:18:96:a2:14 via eth1
May 17 09:39:51 ubuntu1 dhcpd: DHCPACK on 111.111.3.11 to 84:eb:18:96:a2:14 via eth1
==========================2016-04-25 21:33 GMT+03:00 matti kaasinen <matti kaasinen gmail com>:It is dedicated dhcp server for local area network called dhcpd3. I don't know how many free leases it has, but it do have very much free addressing space. I don't beleave server changes addres for lack of addresses. There are only couple of workstations (below 10) using dhcp addressing and basically their address never changes.2016-04-25 16:58 GMT+03:00 José Queiroz <zekkerj gmail com>:_______________________________________________2016-04-25 2:24 GMT-03:00 matti kaasinen <matti kaasinen gmail com>:dhcpd3
Sorry. I didn't make myself clear.Which device is your DHCP server? A router (maybe wifi)? A dedicated/generic router? A server?How many free leases the DHCP server have, now?
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