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Broadcasting DHCP across network

By tchieng ·
I have LAN A and B. Both have a different IP range and subnet. Both are connected via Frame-Relay. I have a Win2000 Server running DHCP on LAN A. Now I want to setup to the DHCP server on LAN A to dynamically assign IP address to LAN B (broadcast DHCP over the WAN). What are the steps I need to do to make this work. We are using Cisco 2600 series routers.

Thanks

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Broadcasting DHCP across network

by aekland In reply to Broadcasting DHCP across ...

I don't know the steps but the router will need a dhcp helper address added so it forwards those broadcast with the right encapsulation so they receive the right scope.

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Broadcasting DHCP across network

by tchieng In reply to Broadcasting DHCP across ...

Thanks for your reply.

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Broadcasting DHCP across network

by McKayTech In reply to Broadcasting DHCP across ...

There are a couple of steps involved.

First, you'll need to set up a DHCP Relay Agent on the second subnet to forward DHCP requests to the server on the other subnet.
This Relay Agent can either be the router itself (set up for BOOTP) or a computer on the network.

Second, you'll need to set up the proper scope on the DHCP server to serve the second subnet.

Finally, you'll need to configure the router to pass NetBIOS packets so the DHCP information passes unimpeded.

There is an article on Technet (Q197197) that might be useful as you're planning this setup.

paul

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Broadcasting DHCP across network

by tchieng In reply to Broadcasting DHCP across ...

Thanks for the reply. This will give me a better foundation to start on.

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Broadcasting DHCP across network

by tchieng In reply to Broadcasting DHCP across ...

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