SharePoint Farm configuration

Configure SharePoint Farm using NLB can be stressful, especially when you don't know anything about setting DNS and has access to it.  Here a list of what you need to setup & know on how to successfully setup this configuration. I'm using this example configuration 2 WFE server (WFE1 & WFE2).

1. You need to have 3 static IP. 1 dedicated IP for server WFE1, another 1 dedicated IP for server WFE2, and the 3rd IP is for Cluster IP (Virtual IP on both server).
2. You need to have a DNS name that pointed to IP Cluster (ex: farmaddress.company.com), make sure that your system admin didn't point that address to IP server (create DNS with type A).
3. Configure your Alternate Access Mapping default zone to DNS name (ex: farmaddress.company.com)
4. Some router didn't support multicast. So try configure NLB using unicast first, then you can try using multicast ref
5. If you couldn't access DNS, you can try your configuration by adding that cluster IP using hosts file configuration on client PC.
6. For how to test this NLB, you can look at this article Confirming Windows Load Balancing