Archer BE230 v1.0 DHCP issue

Archer BE230 v1.0 DHCP issue

Archer BE230 v1.0 DHCP issue
Archer BE230 v1.0 DHCP issue
2025-07-08 10:25:01 - last edited 2025-07-10 01:03:53
Tags: #DHCP
Model: Archer BE230  
Hardware Version: V1
Firmware Version: 1.1.4 Build 20250318 rel.31873(4555)

I begin use Archer BE230 for my local network. I have home NAS. And i use virtual machines on it. Virtual machines get IP from router DHCP. My problem is that virtual machines with different MAC get same IP. Before i was use Archer C6 and not have this issue. I was check all. With Archer C6 all good. With BE230 i get same ip for 2 different Virtual Machines

 

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#1
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1 Accepted Solution
Re: Archer BE230 v1.0 DHCP issue-Solution
2025-07-09 15:42:48 - last edited 2025-07-10 01:03:53
I think I found what's wrong. Ubuntu 22.04 and later use the machine-id for IP by default, not MAC. Since my virtual machines are clones of each other with modified MAC, their machine IDs are the same. So I guess the old Archer C6 router does not use RFC 4361. And the new Tp-link BE230 uses RFC 4361. That's why the behavior is different. That is, everything works correctly. Sorry for the inconvenience.
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#6
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Re: Archer BE230 v1.0 DHCP issue
2025-07-09 08:13:11

Hi @zim555 ,

 

Welcome to our community.

 

From the DHCP settings, there is no specific setting for the specific scenario you mentioned.
Usually, we can set a fixed IP directly on the virtual machine network card. It is recommended that you use a fixed IP directly on the virtual machine.
On the router, you can set an address reservation:How to configure Address Reservation on Wi-Fi Routers (new logo)

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: △New Firmware Update for Archer BE260/Archer BE400 to Support VPN Merge, New ECO Mode, and More △Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN △Tether KidShield Test Recruitment - Safeguarding Children's Online Experience If you found the post or response helpful, please click Helpful. If an answer solves your problem, click "Recommended Solution" so that others can benefit from it.
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Re: Archer BE230 v1.0 DHCP issue
2025-07-09 08:39:26 - last edited 2025-07-09 08:52:07

Forgive me, but the DHCP must ensure that there are not several identical IP addresses on the network. Isn't that its job? I understand that i can set a fixed IP address in a virtual machine or bind a specific IP address to the router with MAC address. But all this does not look like a solution to the problem, but like a workaround. I am not asking to provide me with a workaround for my problem, I know how to do it. I am asking to solve the problem with the incorrectly working DHCP, because this is not normal.

 

I have a Tp-Link Archer C6 and there is no such problem at all. I specifically checked it too. Please pass on the problem with the DHCP in the Tp-Link BE230 to your engineers, perhaps they can solve this problem at the software level

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Re: Archer BE230 v1.0 DHCP issue
2025-07-09 10:53:27

Hi@zim555,

Thanks for getting back to me.

 

Is the NAS hardware device you mentioned connected to the network via wired or wireless?
Please provide the MAC address of the NAS and the simulated MAC addresses of the different virtual machines, which are necessary for our remote Wireshark capture.
Or you can run a Wireshark capture during the issue and share the .pcap file with us.

 

The tech team has been made aware of your issue; they will likely reach out to you via email to continue troubleshooting. Please provide the information above via email.

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: △New Firmware Update for Archer BE260/Archer BE400 to Support VPN Merge, New ECO Mode, and More △Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN △Tether KidShield Test Recruitment - Safeguarding Children's Online Experience If you found the post or response helpful, please click Helpful. If an answer solves your problem, click "Recommended Solution" so that others can benefit from it.
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Re: Archer BE230 v1.0 DHCP issue
2025-07-09 11:13:16 - last edited 2025-07-09 11:22:06

I can provide Virtual Machines MAC: VM1 - 52:54:00:7f:63:f8 VM2 - 52:54:00:90:34:8a VM3 - 52:54:00:4b:37:c2 But My NAS MAC i only provide in private. And i will try provide pcap dump from one of Virtual Machines from starting system. 

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#5
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Re: Archer BE230 v1.0 DHCP issue-Solution
2025-07-09 15:42:48 - last edited 2025-07-10 01:03:53
I think I found what's wrong. Ubuntu 22.04 and later use the machine-id for IP by default, not MAC. Since my virtual machines are clones of each other with modified MAC, their machine IDs are the same. So I guess the old Archer C6 router does not use RFC 4361. And the new Tp-link BE230 uses RFC 4361. That's why the behavior is different. That is, everything works correctly. Sorry for the inconvenience.
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#6
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Re: Archer BE230 v1.0 DHCP issue
2025-07-10 01:03:49

Hi@zim555,

Thank you for finally finding a solution; it will be invaluable to other users with similar problems.

Best Regards~

 

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: △New Firmware Update for Archer BE260/Archer BE400 to Support VPN Merge, New ECO Mode, and More △Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN △Tether KidShield Test Recruitment - Safeguarding Children's Online Experience If you found the post or response helpful, please click Helpful. If an answer solves your problem, click "Recommended Solution" so that others can benefit from it.
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#7
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