Hi,
I have a question, I'm a bit new on the networking area. I got the task to build a NLB, for a soon to be deployed web app.
I searched thru the internet and found a guide to follow, I'll paste the link at the end.
When I did a browsing test from another server, it worked fine. I got directed thru server A or server B using the Cluster IP (10.240.195.58 / 23)
I did as well a ping test to the 2 servers and the cluster IP and it worked out.
I tried to do the test of ping and web browsing from a different subnet, but none responded. Just to clarify even when they are different subnets, they can communicate freely, no firewall permissions are needed, because any internal communication will not go thru the firewall. The routers/Switches already allows communication between every vlan, even when a brand new server/PC connects to the network.
So I got something like the picture added. Now the configuration I did for the NLB was this
Name NIC IP NIC Name
-----------------------------------------
Server A 10.240.194.223 Management
Server A 10.240.195.204 NLB
Server B 10.240.194.249 Management
Server B 10.240.195.224 NLB
Cluster IP 10.240.195.58
Subnet Mask: 255.255.254.0 (applies for all nics/cluster)
So as you can see both NICs, for both servers and cluster IP configuration is on the same VLAN.
PCs from same vlan can ping both nic on both server and cluster
PCs from another vlan can ping both nic on both server but cannot ping the cluster
Can anyone point me out what I'm doing wrong. The servers are virtualized and the vSwitch (vmware) can only point one Vlan which is the 10.240.194.0/23.
http://www.serverlab.ca/tutorials/windows/web-servers/load-balancing-web-servers-with-windows-server-2012-r2/