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Using same IP addresses in two Active/Active DCs connected by stretched layer 2 Interconnect

Hi Experts

I suspect this is not possible, but I thought I would throw it out to you guys as a challenge

Basically I am building two new data centers in active/active configuration with two Metro Ethernet Interconnects (unsure of protocol as yet but it will not be OTV as I have to use Juniper). Pretty much everything is virtualised (5.1) and most OSs are Win 2012. The only replication is synchronous and occurs between the two SANs.

I have a requirement to use the same IP addressing scheme (by that I mean the same IP addresses) in both DCs.

Question 1 - is this possible?

Question 2 - if it is possible, how on earth can it be done?

Any help would be very much appreciated

Yours hopefully

Ben Woods

ASKER CERTIFIED SOLUTION

Tony Giangreco

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Kash

not possible if like you said both networks are interconnected. out of curiousity, whats the reason you want to use the same IP ?

ToChangeIT

ASKER

Thanks for your super-quick reply TG-TIS. I understand the duplicate IP conflict issue, but thought therre may be some clever VMWare or VLAN solution to the problem.

Tony Giangreco

If both locations are connected and considered one network, it's going to be hard to mask that situation. If you make them two seperate networks, your problem goes away.

ToChangeIT

ASKER

Hi innocentdevil

The key reason is sloppy in-house legacy programmes which use hard-coded IP addresses and FQDNs. I know it is possible to script my way out of this, but a nifty network-based solution would get me a lot of brownie points at work!!!

Ben

SOLUTION

hypercube

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