Hello,
I am testing NLB in a lab environment. My environment topology along with IP addresses are provided below. The environment is set up in a VMWARE 5.5 Environment.
The NLB is set up with all default and transmission mode is unicast
Problem Statement: The cluster IP and the dedicated server interfaces for NLB are not pinging from the client or from the servers themselves
Troubleshooting:
- Firewall is down on both servers.
- All NIC's are properly configured.
- The ARP table was statically updated on the client to point to the cluster IP and MAC, still not working.
- Ping from 10.192.3.200 to the below IP's time out
- 10.192.0.226,227,115,116,117
- Ping from 10.192.0.226 to 10.192.0.227 is working
- Ping from 10.192.0.226 to 10.192.0.115 is working when Server1 holds the cluster IP
- Ping from 10.192.0.227 to 10.192.0.115 is NOT working when Server1 holds the cluster IP
- Ping from 10.192.0.226 to 10.192.0.115 is NOT working when Server2 holds the cluster IP
- Ping from 10.192.0.227 to 10.192.0.115 is working when Server1 holds the cluster IP
- I have removed all NLB's from the servers and reconfigured them. Still it is not working.
- When transmission mode is set to mullticast, pings work, but application hosted on the NLB still doesnt connect.