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<p class="MsoNormal"><span lang="EN-US">Hi all,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Let us assume that there would be 2 servers running , so 2 clients should connect to the server.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I am using ISC dhcp-4.2.3 code.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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o:spt="32" o:oned="t" path="m,l21600,21600e" filled="f">
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z-index:251660288' o:connectortype="straight">
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</v:shape><![endif]--><![if !vml]><span style="mso-ignore:vglayout;position:
absolute;z-index:251660288;margin-left:203px;margin-top:5px;width:70px;
height:12px"><img width="70" height="12" src="cid:image003.png@01CCC407.8248B540" v:shapes="_x0000_s1030"></span><![endif]><span lang="EN-US">Linux
server --------------->switch PC1<o:p></o:p></span></p>
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style='position:absolute;margin-left:28.5pt;margin-top:1.5pt;width:0;height:14.25pt;
z-index:251661312' o:connectortype="straight">
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</v:shape><![endif]--><![if !vml]><span style="mso-ignore:vglayout;position:
absolute;z-index:251661312;margin-left:32px;margin-top:1px;width:12px;
height:22px"><img width="12" height="22" src="cid:image004.png@01CCC407.8248B540" v:shapes="_x0000_s1031"></span><![endif]><!--[if gte vml 1]><v:shape id="_x0000_s1027"
type="#_x0000_t32" style='position:absolute;margin-left:142.5pt;margin-top:1.5pt;
width:.75pt;height:28.5pt;z-index:251658240' o:connectortype="straight" /><![endif]--><![if !vml]><span style="mso-ignore:vglayout;position:absolute;z-index:251658240;margin-left:
189px;margin-top:1px;width:3px;height:40px"><img width="3" height="40" src="cid:image005.png@01CCC407.8248B540" v:shapes="_x0000_s1027"></span><![endif]><span lang="EN-US">
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">running two process<o:p></o:p></span></p>
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<v:stroke endarrow="block" />
</v:shape><![endif]--><![if !vml]><span style="mso-ignore:vglayout;position:
absolute;z-index:251659264;margin-left:190px;margin-top:3px;width:83px;
height:12px"><img width="83" height="12" src="cid:image006.png@01CCC407.8248B540" v:shapes="_x0000_s1029"></span><![endif]><span lang="EN-US">i:e
dhcpd PC2<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">PC1 as client 1<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">PC2 as client 2<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">in switch , two ports are used to connect PC1 and PC2<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">these two ports I have configured as vlans 1 and 2. (access port)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Vlan 1 for PC1 connection.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Vlan 2 for PC2 connection<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Initially we would have configured in server side about which subnet it should listen.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">For example :<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Ifconfig etho add 10.1.1.1<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Ifconfig eth1 add 20.1.1.1<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">But I got one information from dhcp users , there are methods available and I mentioned below.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoPlainText"><b><u><span style="color:red">1) Declare host statements for clients required in one subnet, then use allow/deny known-hosts to allow them in one and deny them in the other.<o:p></o:p></span></u></b></p>
<p class="MsoPlainText"><b><u><span style="color:red"><o:p><span style="text-decoration:none"> </span></o:p></span></u></b></p>
<p class="MsoPlainText"><b><u><span style="color:red">2) Use classes and subclasses to assign clients in much the same way (typically by list of MAC addresses.<o:p></o:p></span></u></b></p>
<p class="MsoPlainText"><b><u><span style="color:red"><o:p><span style="text-decoration:none"> </span></o:p></span></u></b></p>
<p class="MsoPlainText"><b><u><span style="color:red">3) Use classes matches on some arbitrary expression (could be vendor ID etc) to separate clients.<o:p></o:p></span></u></b></p>
<p class="MsoPlainText"><b><u><span style="color:red"><o:p><span style="text-decoration:none"> </span></o:p></span></u></b></p>
<p class="MsoNormal"><b><u><span lang="EN-US" style="color:red"><o:p><span style="text-decoration:none"> </span></o:p></span></u></b></p>
<p class="MsoNormal"><b><u><span lang="EN-US" style="color:red"><o:p><span style="text-decoration:none"> </span></o:p></span></u></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="color:#7030A0"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="color:#7030A0">But I need information about method 3 due to my requirements. How to do that type of client separation. Please let me know.<o:p></o:p></span></b></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">For example in dhcpd.conf contains 10subnets<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> #vi dhcpd.conf<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoPlainText"> subnet 10.0.0.0 netmask 255.0.0.0 {<o:p></o:p></p>
<p class="MsoPlainText"> ...<o:p></o:p></p>
<p class="MsoPlainText"> }<o:p></o:p></p>
<p class="MsoPlainText"> subnet 20.0.0.0 netmask 255.0.0.0 {<o:p></o:p></p>
<p class="MsoPlainText"> ...<o:p></o:p></p>
<p class="MsoPlainText"> }<o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"> </span>subnet 30.0.0.0 netmask 255.0.0.0 {<o:p></o:p></p>
<p class="MsoPlainText"> ...<o:p></o:p></p>
<p class="MsoPlainText"> }<o:p></o:p></p>
<p class="MsoPlainText"> subnet 40.0.0.0 netmask 255.0.0.0 {<o:p></o:p></p>
<p class="MsoPlainText"> ...<o:p></o:p></p>
<p class="MsoPlainText"> }<o:p></o:p></p>
<p class="MsoPlainText"> subnet 50.0.0.0 netmask 255.0.0.0 {<o:p></o:p></p>
<p class="MsoPlainText"> ...<o:p></o:p></p>
<p class="MsoPlainText"> }<o:p></o:p></p>
<p class="MsoPlainText"> subnet 60.0.0.0 netmask 255.0.0.0 {<o:p></o:p></p>
<p class="MsoPlainText"> ...<o:p></o:p></p>
<p class="MsoPlainText"> } <o:p></o:p></p>
<p class="MsoPlainText"> subnet 70.0.0.0 netmask 255.0.0.0 {<o:p></o:p></p>
<p class="MsoPlainText"> ...<o:p></o:p></p>
<p class="MsoPlainText"> }<o:p></o:p></p>
<p class="MsoPlainText"> subnet 80.0.0.0 netmask 255.0.0.0 {<o:p></o:p></p>
<p class="MsoPlainText"> ...<o:p></o:p></p>
<p class="MsoPlainText"> }<o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Ameen S<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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