Hello!
I've a test enviromet with 2 x ESX 4 Server and a vCenter Server. I connect with the vClient to the vCenter Server over a VPN tunnel. When I start the console of a VM, I become the error message "Unable to connect to the MKS: ..... :903.
From the PC with the vClient I can connect over telnet to Port 902, Port 903 doesn't work.
From the vCenter Server I can connect over telnet to Port 902 and 903.
All traffic on VPN will forward. What can I do do correct the problem? Hope you have some ideas.
I suspect windows firewall is blocking 903 at VIclient side
If you found this information useful, please consider awarding points for "Correct" or "Helpful". Thanks!!!
The Windows Firewall on the vClient is disabled.
What about vCenter server firewall ? are you able to telenet to port 903 on vCenter from other PCs in network ?
The firewall on the vCenter server is disabled. It doesn't work ,when I try to connect from a other PCin our network. I've tested 3 PCs.
Thanks for your reply.
I've repaired the problem. I insert in the /etc/vmware/config the value vmauthd.server.alwaysProxy="TRUE"
Now, it works.
I had the same issue after migrating all of my physical NICs to a Nexus 1000v and restarting the network service resolved the issue.
root@localhost#:> service network restart