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Exchange 2010 DAG

Hi all,

If in a 2 node DAG, I have my MAPI and Replication NICs on the same subnet, then on my DAGNetwork01 interface, should I see all 4 IPs ?

Because I have seen everywhere (and in best practice) that DAGNetwork01 is created for MAPI and DAGNetwork02 for Replication and we uncheck the Replication box for MAPI. But in my case, what would be your suggestion ?

Thanks everyone.

Exchange User
Exchange User
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1 Solution
MAS (MVE)Technical Department HeadCommented:
It is recommended to have isolated network for replication.
If you have 4 NICs connected to one single switch create one more network and give an IP range below and no need gateway. and untick DNS registration.
Node1 IP
Node2 IP

If you still want to keep 4 NICs for MAPI network you can add these NICs and you can all 4 IPs.

Exchange UserSystems AdministratorAuthor Commented:

Thank you for your reply.

If I only have one DAG network, so should I see all 4 IPs in there or only 2 should show up ?
MAS (MVE)Technical Department HeadCommented:
If you have configured the  4 IPs all the 4 IPs should in the DAG properties.

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