VMG8623-T50B - udhcpc: Sending discover

I am trying to debug something on my network and enabled logging on my router.

I see many many logs about:

Apr 5 13:51:02 daemon.debug udhcpc: Sending discover...
Apr 5 13:51:04 daemon.debug udhcpc: Sending discover...
Apr 5 13:51:13 daemon.debug udhcpc: Sending discover...
Apr 5 13:51:15 daemon.debug udhcpc: Sending discover...
Apr 5 13:51:16 daemon.debug udhcpc: Sending discover...
Apr 5 13:51:25 daemon.debug udhcpc: Sending discover...
Apr 5 13:51:27 daemon.debug udhcpc: Sending discover...
Apr 5 13:51:28 daemon.debug udhcpc: Sending renew...
Apr 5 13:51:28 daemon.info udhcpc: Lease of 10.252.74.97 obtained, lease time 295
Apr 5 13:51:28 daemon.info udhcpc: dhcpMsgSend: msgType[-2147483403]
Apr 5 13:51:29 daemon.debug udhcpc: Sending discover...
Apr 5 13:51:39 daemon.debug udhcpc: Sending discover...
Apr 5 13:51:41 daemon.debug udhcpc: Sending discover...
Apr 5 13:51:43 daemon.debug udhcpc: Sending discover...
Apr 5 13:51:51 daemon.debug udhcpc: Sending discover...
Apr 5 13:51:53 daemon.debug udhcpc: Sending discover...
Apr 5 13:51:55 daemon.debug udhcpc: Sending discover...
Apr 5 13:52:04 daemon.debug udhcpc: Sending discover...
Apr 5 13:52:07 daemon.debug udhcpc: Sending discover...
Apr 5 13:52:09 daemon.debug udhcpc: Sending discover...
Apr 5 13:52:18 daemon.debug udhcpc: Sending discover...
Apr 5 13:52:19 daemon.debug udhcpc: Sending discover...
Apr 5 13:52:21 daemon.debug udhcpc: Sending discover...
Apr 5 13:52:30 daemon.debug udhcpc: Sending discover...
Apr 5 13:52:32 daemon.debug udhcpc: Sending discover...
Apr 5 13:52:35 daemon.debug udhcpc: Sending discover...
Apr 5 13:52:44 daemon.debug udhcpc: Sending discover...
Apr 5 13:52:46 daemon.debug udhcpc: Sending discover...

Is this behavior normal?