lots of entries of this after upgrading to 2.7.1 and enable the new dhcp backend
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Nov 7 12:45:58 kernel arp: 192.168.1.102 moved from 1c:93:c4:54:de:39 to 7c:d5:66:d4:f7:24 on igb1
Nov 7 12:45:08 kernel arp: 192.168.1.102 moved from 7c:d5:66:d4:f7:24 to 1c:93:c4:54:de:39 on igb1
Nov 7 12:44:46 kernel arp: 192.168.1.102 moved from 1c:93:c4:54:de:39 to 7c:d5:66:d4:f7:24 on igb1
Nov 7 12:43:23 kernel arp: 192.168.1.102 moved from 7c:d5:66:d4:f7:24 to 1c:93:c4:54:de:39 on igb1
Nov 7 12:42:58 kernel arp: 192.168.1.102 moved from 1c:93:c4:54:de:39 to 7c:d5:66:d4:f7:24 on igb1
Nov 7 12:42:09 kernel arp: 192.168.1.102 moved from 7c:d5:66:d4:f7:24 to 1c:93:c4:54:de:39 on igb1
Nov 7 12:41:48 kernel arp: 192.168.1.102 moved from 1c:93:c4:54:de:39 to 7c:d5:66:d4:f7:24 on igb1
Nov 7 12:41:14 kernel arp: 192.168.1.102 moved from 7c:d5:66:d4:f7:24 to 1c:93:c4:54:de:39 on igb1
Nov 7 12:40:52 kernel arp: 192.168.1.102 moved from 1c:93:c4:54:de:39 to 7c:d5:66:d4:f7:24 on igb1
Nov 7 12:40:30 kernel arp: 192.168.1.102 moved from 7c:d5:66:d4:f7:24 to 1c:93:c4:54:de:39 on igb1
Nov 7 12:39:36 kernel arp: 192.168.1.102 moved from 1c:93:c4:54:de:39 to 7c:d5:66:d4:f7:24 on igb1
Nov 7 12:39:23 kernel arp: 192.168.1.102 moved from 7c:d5:66:d4:f7:24 to 1c:93:c4:54:de:39 on igb1
Nov 7 12:39:02 kernel arp: 192.168.1.102 moved from 1c:93:c4:54:de:39 to 7c:d5:66:d4:f7:24 on igb1
Nov 7 12:38:34 kernel arp: 192.168.1.102 moved from 7c:d5:66:d4:f7:24 to 1c:93:c4:54:de:39 on igb1
Nov 7 12:38:12 kernel arp: 192.168.1.102 moved from 1c:93:c4:54:de:39 to 7c:d5:66:d4:f7:24 on igb1
Nov 7 12:37:59 kernel arp: 192.168.1.102 moved from 7c:d5:66:d4:f7:24 to 1c:93:c4:54:de:39 on igb1
Nov 7 12:37:37 kernel arp: 192.168.1.102 moved from 1c:93:c4:54:de:39 to 7c:d5:66:d4:f7:24 on igb1
Nov 7 12:37:21 kernel arp: 192.168.1.102 moved from 7c:d5:66:d4:f7:24 to 1c:93:c4:54:de:39 on igb1
Nov 7 12:37:20 kernel arp: 192.168.1.101 moved from 1c:93:c4:54:de:39 to da:d8:cb:59:a8:9f on igb1
Nov 7 12:37:02 kernel arp: 192.168.1.102 moved from 1c:93:c4:54:de:39 to 7c:d5:66:d4:f7:24 on igb1
Nov 7 12:36:09 kernel arp: 192.168.1.102 moved from 7c:d5:66:d4:f7:24 to 1c:93:c4:54:de:39 on igb1
Nov 7 12:35:48 kernel arp: 192.168.1.102 moved from 1c:93:c4:54:de:39 to 7c:d5:66:d4:f7:24 on igb1
Nov 7 12:35:21 kernel arp: 192.168.1.102 moved from 7c:d5:66:d4:f7:24 to 1c:93:c4:54:de:39 on igb1
Nov 7 12:34:17 kernel arp: 192.168.1.101 moved from da:d8:cb:59:a8:9f to 1c:93:c4:54:de:39 on igb1
Nov 7 12:33:43 kernel arp: 192.168.1.101 moved from 1c:93:c4:54:de:39 to da:d8:cb:59:a8:9f on igb1
Nov 7 12:31:56 kernel arp: 192.168.1.101 moved from 1c:93:c4:54:de:39 to da:d8:cb:59:a8:9f on igb1
Nov 7 12:31:29 kernel arp: 192.168.1.101 moved from da:d8:cb:59:a8:9f to 1c:93:c4:54:de:39 on igb1
Nov 7 12:31:03 kernel arp: 192.168.1.101 moved from 1c:93:c4:54:de:39 to da:d8:cb:59:a8:9f on igb1
Nov 7 12:30:33 kernel arp: 192.168.1.101 moved from da:d8:cb:59:a8:9f to 1c:93:c4:54:de:39 on igb1
Nov 7 12:30:10 kernel arp: 192.168.1.101 moved from 1c:93:c4:54:de:39 to da:d8:cb:59:a8:9f on igb1
Nov 7 12:29:55 kernel arp: 192.168.1.101 moved from 1c:93:c4:54:de:39 to da:d8:cb:59:a8:9f on igb1 -
Hmm, not sure why you wouldn't have seen that in 2.7.0 or with ISC dhcpd.
What are those devices? That IP address?
Is that actually a conflicting IP address or is it a lagg NIC pair maybe?
Steve
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@stephenw10 its gone now I had to reboot all devices since then there has been no more entries like that.
