Windows 2008 Web NLB Cluster

[hsood2001]

Hi All,

I did have a working Windows 2008 Web Servers Network Load Balancing Cluster Web farm but now I am having a few problems.

This is my setup:

I have 2 nodes in my cluster:

Node 1
IP: x.x.x.1
Cluster IP: x.x.x.10

Node 2
IP: x.x.x.2
Cluster IP: x.x.x.10

There are two NICs in my two identical servers, one nic is used for private network on a 192. range and the other is using a fixed Public IP.

I created a new cluster using NLB Manager I select my public nic card and set it to as Multicast on Node1. Then NLB Manager creates the first node in the cluster without any errors. Then I add my second Node2 into the cluster using Multicast again which is created without any errors on Node1.

I can ping x.x.x.2 from node1 and ping x.x.x.10 from node1 and can also ping it from any other server on the same subnet. I can do the same on node2 I can ping x.x.x.1 and ping x.x.x.10.

When I ping x.x.x.1 or x.x.x.2 from the external network (WAN) this works fine, but if I ping my cluster IP x.x.x.10 it fails. I have tried everything I can think of and need some help. I deleted the cluster and recreated it but keep on getting timeouts. This has been working fines for months in the past so I am not sure what the issue is.

If I go into NLB manager on node 2 I also get the error "Host unreachable. Error connecting to "Server1"". I have made sure that icmp is enabled on both servers and that the firewall is disabled but still get this error?

Any help would be great.

Thanks.

 

[baddos]

Are you using switches? If so, what model and configuration.

The "nic" is it part of a team? You can't use NLB on virtual nics (team adapters/etc).

 

[hsood2001]

I have managed to fix this, it was a issue with the muliticast mac address on the router.

Thanks anyway.