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Failover DHCP service from LAN to data-center

Kobi thedog

Hi 

I am building a disaster recovery server solution for my company that will reside in a local data center, this DR server is receiving hourly replication jobs from my LAN production servers using a Veeam solution.

I am replicating some file servers and a domain controller, the domain controller has the DHCP role installed and while running within my LAN production environment it serves out IP's to my client workstations, my link from my local LAN to our chosen data center is a layer 2 connection. In the event I ever needed to fail-over my servers into the data center i would need to have my Sophos UTM9 pass DHCP requests from my LAN clients over the UTM WAN port Layer 2 connection so that the data center hosted domain controller could then accept and begin serving out DHCP requests back to my LAN clients.

Does anyone know what type of routing modification or rule I would need to create on the Sophos UTM9 gateway in order for this to occur successfully? a static route for DHCP or similar? keeping in mind that the DR site and my local LAN will be on the same subnet the only thing that essential would be changed in a fail over event would be that DHCP would be required to be available to the LAn clients via the up-link port of the UTM facing towards the data center.

Thanks in advance. 



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  • 0

    Hi, and welcome to the UTM Community!

    I admit that I'm not "seeing" your topology, but what disaster are you preparing for where your DHCP server will be unavailable, but all of your users will have functioning devices?  Are you saying that you have two separate data centers and a central office separate from each?

    Doug answered the question we both think you've asked, but is it the right question?  Is there a different question that might generate a more robust solution?

    Cheers - Bob

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  • 0

    Hi, and welcome to the UTM Community!

    I admit that I'm not "seeing" your topology, but what disaster are you preparing for where your DHCP server will be unavailable, but all of your users will have functioning devices?  Are you saying that you have two separate data centers and a central office separate from each?

    Doug answered the question we both think you've asked, but is it the right question?  Is there a different question that might generate a more robust solution?

    Cheers - Bob

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