Re: Dhcp help
Re: Dhcp help
- Subject: Re: Dhcp help
- From: Dalton Hamilton <email@hidden>
- Date: Fri, 14 Jan 2005 19:40:08 +0100
When you say these subnets are on the same physical network, I'm assuming that you have them in the same VLAN/broadcast-domain. Given that they're in the same broadcast domain, why not just use /23 instead of /24. Make the change in you DHCP server and you shouldn't have a problem.
I saw you configured a secondary interface on your router -- again, wouldn't be needed if you went to a /23.
However, having said all this, if you are using over 200 IP address, I'd recommend you keep the /24 and break them into different VLANs/boradcast domains. In order to do this, your router will need to connect to both vlans or your witch will need to be layer-3 capable. You can keep 200 on vlan1 for example and the 201 on vlan2. From there, you can configure the DHCP server as /24 subnets and when it receives a dhcp request, it'll issue and address out of the right range. You'll need to look at dhcp helper addresses on your switches for the subnet/broadcast domain that the dhcp server is not part of.
So, though I like the traffic control and broadcast control that a /24 give me when in different VLANs, it may be more than you want to deal with -- so your easy solution may be a simple /23 and drop the second interface on the router -- again, all devices addresses statically will also need to have a /23 subnet mask.
hope this helps and doesn't confuse you more....
dalton hamilton
Given the subnets you're using, I'd suggest you
On Jan 14, 2005, at 6:58 PM, Chris Botts wrote:
<x-tad-smaller>I am new to this list but I wanted to see if someone could help me out with an issue I am having. We are using a mac osx server for our dhcp server. We currently have 64.135.200.0/24 and 64.135.201.0/24</x-tad-smaller>
<x-tad-smaller> </x-tad-smaller>
<x-tad-smaller>The networks are the same physical network, and I had bound the 2</x-tad-smaller><x-tad-smaller>nd</x-tad-smaller><x-tad-smaller> subnet in our main router. The issue I am having is the first block is almost used up and I setup the second block in the dhcp server with the correct router address that I bound. I have yet to see it hand out any ip address in the second block. The first block is working fine. If anyone would have any input or advice that I could try to get this working I would appreciate it.</x-tad-smaller>
<x-tad-smaller> </x-tad-smaller>
<x-tad-smaller>Note(I can assign static ip’s on the second block and get on line so I know that the block working correctly.)</x-tad-smaller>
<x-tad-smaller> </x-tad-smaller>
Chris Botts
AT Cyber Systems
815-784-9898
email@hidden
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| | >Dhcp help (From: "Chris Botts" <email@hidden>) |