DHCP Reserved

[dhenry123]

Hi I m working on raspberry pi with debian. I 've set Reserved address 10.1.10.2 for the mac XX-XX-XX-XX-XX and server got this ip address.

I reboot the server and dhcp log tells (server is rebooting) :

[2023-08-14 07:25:01 UTC] DHCP Server cannot allocate reserved lease [10.1.10.2] to XX-XX-XX-XX-XX for scope 'MyDHCPSCOPE': The IP address is already allocated.
[2023-08-14 07:25:01 UTC] DHCP Server cannot allocate reserved lease [10.1.10.2] to XX-XX-XX-XX-XX for scope 'MyDHCPSCOPE': The IP address is already allocated.
[2023-08-14 07:25:04 UTC] DHCP Server cannot allocate reserved lease [10.1.10.2] to XX-XX-XX-XX-XX for scope 'MyDHCPSCOPE': The IP address is already allocated.

And finally give me a non reserved IP 10.1.10.5, the mac adress is correct, and the same as set in reserved ip.

[2023-08-14 07:25:04 UTC] [0.0.0.0:68] DHCP Server offered IP address [10.1.10.5] to ServerHostname [XX-XX-XX-XX-XX] for scope: MyDHCPSCOPE
[2023-08-14 07:25:04 UTC] DHCP Server cannot allocate reserved lease [10.1.10.2] to XX-XX-XX-XX-XX for scope 'MyDHCPSCOPE': The IP address is already allocated.
[2023-08-14 07:25:04 UTC] DHCP Server cannot allocate reserved lease [10.1.10.2] to XX-XX-XX-XX-XX for scope 'MyDHCPSCOPE': The IP address is already allocated.
[2023-08-14 07:25:04 UTC] [0.0.0.0:68] DHCP Server leased IP address [10.1.10.5] to ServerHostname [XX-XX-XX-XX-XX] for scope: MyDHCPSCOPE

Thank for your software...

[ShreyasZare]

Thanks for the post. Check this issue for the solution. You just need to edit your client to use MAC address as the DHCP Client Identifier.

[dhenry123]

Sorry for the delay, my problem has been solved since I used the "Ignore Client Identifier (Option 61)" option. Thank you very much for your amazing work

[ShreyasZare]

Thanks for the feedback!