When configuring NLB, you choose the cluster IP. This removes any other secondary IP addresses for the network adapter.
How can I have one cluster IP shared by NLB while still having multiple dedicated IPs to single machines, ie for the mail server?
EDIT more info:
Currently have Web1 serving the following:
1.1.1.1 -> mydomain.com
1.1.1.2 -> mail.mydomain.com
1.1.1.3 -> support.mydomain.com
1.1.1.4 -> ns1.mydomain.com
Want to add Web2 to load balance/provide redundancy just for
1.1.1.1 -> mydomain.com
, while keeping mail.mydomain.com
and support.mydomain.com
at Web1.
Reason for this is you only want your emails going to one inbox and the support website uses a MySQL db on Web1 which I don't want to mirror to Web2.
Best Answer
I've never seen your scenario with NLB but I'm thinking that you'll need to use multiple network adapters in the server. One for NLB traffic and one for everything else. I'm thinking that you'll need to set the non-NLB adapter to have a default gateway and not the NLB adapter, or you'll need to set a different metric on each adapter. This snippet from an MS TechNet article seems to address this, but I'm not completely sure: