04-29-2008, 02:56 PM
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#2 (permalink)
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Manager, Networking Forums
Join Date: Sep 2002
Location: S.E. Pennsylvania, US
Posts: 28,126
OS: XP-Pro, Vista, Linux
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Re: DHCP Traffic Not Traversing VLANs
Suggestion from: http://www.experts-exchange.com/OS/M..._22533966.html
Quote:
What you would do is setup multiple scopes on your dhcp server. Then on the router that is connected to all of these vlan’s or a Layer3 switch you would need to setup an ip helper-address. So it would look like this command.
interface Vlan10
description VLAN 10
ip address 10.10.10.1 255.255.255.0
ip helper-address 10.10.10.1 ( this would be the ip address of your dhcp server)
This works by having the router make the dhcp request on behalf of the network so you can have multiple scopes with a dhcp server only having one nic and ip address.
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