DHCP server issues in cloud data center environment

[Liang LR Rong]

Hi DHCP Hackers,

I am currently working on a project which requires DHCP server to be
multi-tenant aware in cloud data center environment.

What I mean ``multi-tenant aware'' here is that each tenant has a virtual
network by utilizing some network virtualization technology. There will be
thousands of tenants in a cloud data center. Thus, thousands of virtual
networks operated by each tenant separately.

The requirement is that to save TCO, we should provision one DHCP server
(running a single DHCPd instance) to service many tenants. But, the IP
address spaces are likely to be overlapped for those tenants. So, the point
is that is there any solution or workaround to make the ISC DHCP server to
allocate IP address for each tenant separately and these IP address are
overlapped when look from the overall address pool?

Best regards,

Jet Rong(荣亮)
Software Engineer, System Networking
China Systems and Technology Lab (CSTL), IBM Wuxi
5 floor,A1# building, No.55 Xiuxi Road, Binhu District, Wuxi, China, 214125
无锡市滨湖区绣溪路55号A1楼5F, 214125
Email: rliangwx at cn.ibm.com
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