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<p><font size="3" face="Calibri">Steven,</font><br>
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<font size="3" face="Calibri">Thanks for your reply. Can the overlapped address ranges be separated by pool or class?</font><br>
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<font size="2" face="sans-serif">Best regards,</font><br>
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<font size="2" face="sans-serif">Jet Rong(荣亮)<br>
Software Engineer, System Networking<br>
China Systems and Technology Lab (CSTL), IBM Wuxi<br>
5 floor,A1# building, No.55 Xiuxi Road, Binhu District, Wuxi, China, 214125<br>
无锡市滨湖区绣溪路55号A1楼5F, 214125<br>
Email: rliangwx@cn.ibm.com</font><br>
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<img width="16" height="16" src="cid:1__=C7BBF601DFBC51408f9e8a93df938@cn.ibm.com" border="0" alt="Inactive hide details for Steven Carr ---2014/03/05 16:38:38---On 5 March 2014 07:12, Liang LR Rong <jet.rongl@cn.ibm.com> wrot"><font size="2" color="#424282" face="sans-serif">Steven Carr ---2014/03/05 16:38:38---On 5 March 2014 07:12, Liang LR Rong <jet.rongl@cn.ibm.com> wrote: > The requirement is that to save</font><br>
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<font size="1" color="#5F5F5F" face="sans-serif">发件人: </font><font size="1" face="sans-serif">Steven Carr <sjcarr@gmail.com></font><br>
<font size="1" color="#5F5F5F" face="sans-serif">收件人: </font><font size="1" face="sans-serif">Liang LR Rong/China/IBM@IBMCN, </font><br>
<font size="1" color="#5F5F5F" face="sans-serif">抄送: </font><font size="1" face="sans-serif">dhcp-hackers@lists.isc.org</font><br>
<font size="1" color="#5F5F5F" face="sans-serif">日期: </font><font size="1" face="sans-serif">2014/03/05 16:38</font><br>
<font size="1" color="#5F5F5F" face="sans-serif">主题: </font><font size="1" face="sans-serif">Re: DHCP server issues in cloud data center environment</font><br>
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<tt><font size="2">On 5 March 2014 07:12, Liang LR Rong <jet.rongl@cn.ibm.com> wrote:<br>
> The requirement is that to save TCO, we should provision one DHCP server<br>
> (running a single DHCPd instance) to service many tenants. But, the IP<br>
> address spaces are likely to be overlapped for those tenants. So, the point<br>
> is that is there any solution or workaround to make the ISC DHCP server to<br>
> allocate IP address for each tenant separately and these IP address are<br>
> overlapped when look from the overall address pool?<br>
<br>
No. You would need a DHCP instance per overlapping address-space.<br>
DHCPd can only operate on a single address-space.<br>
And you should also look at deploying multiple DHCP servers utilizing<br>
DHCP failover for resilience.<br>
<br>
Steve<br>
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