DHCP server allocating IP address before the lease expires
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I see many DHCP server IP address allocations sometimes minutes apart for the same device. I have set the lease period to be 48 hours, but reallocations keep happening way earlier. Some times I see internet access interruptions but I am not able to pin point it to load balancer or the ISP. This started happening after I upgraded to 605 from 470. So my suspicions are on 605 still. Any help to isolate and fix the problem will be appreciated. I have a deco mesh farm sitting behind the load balancer. I have configured 2 WANs and the rest as LANs
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Hello @Mohan61 ,
Mohan61 wrote
I see many DHCP server IP address allocations sometimes minutes apart for the same device. I have set the lease period to be 48 hours, but reallocations keep happening way earlier.
May I know exactly how earlier in advance before the DHCP lease expired?
How often did this issue happen and can you reproduce it stably?
May I know if there is a reboot behavior on the client devices or ER605 during the DHCP lease time?
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I am attaching a copy paste of my system log from er605
all allocations for the same deco mesh router. The router is physically close by connected with a short cat6 cable.
these allocations happen with other devices too.
| 1 | 2023-04-27 12:05:45 | Remote Management | NOTICE | IP address 192.168.0.120 succeeded to access the server. |
| 2 | 2023-04-27 10:58:33 | DHCP Server | NOTICE | |
| 3 | 2023-04-27 09:44:01 | DHCP Server | NOTICE | |
| 4 | 2023-04-27 09:30:33 | DHCP Server | NOTICE | |
| 5 | 2023-04-27 09:30:27 | DHCP Server | NOTICE | |
| 6 | 2023-04-27 09:13:27 | Remote Management | NOTICE | |
| 7 | 2023-04-27 08:02:15 | DHCP Server | NOTICE | |
| 8 | ||||
| 9 | 2023-04-27 06:24:58 | DHCP Server | NOTICE | DHCP Server allocated IP address 192.168.0.107 for the client[MAC: xxxxxxxx:2c]. |
| 10 | 2023-04-27 06:23:57 | DHCP Server | NOTICE | DHCP Server allocated IP address 192.168.0.107 for the client[MAC: xxxxxxxxx:2c]. |
| 11 | 2023-04-27 06:23:44 | DHCP Server | NOTICE | DHCP Server allocated IP address 192.168.0.107 for the client[MAC: xxxxxxxxxx:2c]. |
| 12 | 2023-04-27 06:21:24 | DHCP Server | NOTICE | DHCP Server allocated IP address 192.168.0.107 for the client[MAC: xxxxxxxxxx. 2c]. |
| 13 | 2023-04-27 06:11:38 | DHCP Server | NOTICE | DHCP Server allocated IP address 192.168.0.107 for the client[MAC: xxxxxxxxxxxx2c]. |
| 14 | 2023-04-27 06:11:33 | DHCP Server | NOTICE | DHCP Server allocated IP address 192.168.0.107 for the client[MAC: xxxxxxxxxxxxx2c]. |
| 15 | 2023-04-27 06:10:13 | DHCP Server | NOTICE | DHCP Server allocated IP address 192.168.0.107 for the client[MAC: xxxxxxxxxxxxxxxx2c]. |
| 16 | 2023-04-27 06:09:58 | DHCP Server | NOTICE | DHCP Server allocated IP address 192.168.0.107 for the client[MAC: xxxxxxxxxxxxxx2c]. |
| 17 | 2023-04-27 06:03:31 | DHCP Server | NOTICE | DHCP Server allocated IP address 192.168.0.107 for the client[MAC: xxxxxxxxxxxxxx2c]. |
| 18 | 2023-04-27 06:03:17 | DHCP Server | NOTICE | DHCP Server allocated IP address 192.168.0.107 for the client[MAC: xxxxxxxxxxxxxxx2c]. |
| 19 | 2023-04-27 06:00:48 | DHCP Server | NOTICE | DHCP Server allocated IP address 192.168.0.107 for the client[MAC: cxxxxxxxxxxxxxx :2c]. |
| 20 | 2023-04-27 05:50:37 | DHCP Server | NOTICE | DHCP Server allocated IP address 192.168.0.107 for the client[MAC: xxxxxxxxxxxxx:2c]. |
| 21 | 2023-04-27 05:50:23 | DHCP Server | NOTICE | DHCP Server allocated IP address 192.168.0.107 for the client[MAC: xxxxxxxxxxxccc:2c]. |
| 22 | 2023-04-27 05:49:06 | DHCP Server | NOTICE | DHCP Server allocated IP address 192.168.0.107 for the client[MAC: xxxxxxxxxxxxxx2c]. |
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it is not reproduceable consistently. It happens randomly. So far I have not been able to identify what sequence of events results in this
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