Good afternoon,
I am using VMWare Server to host some servers. To enable traffic from outside to these servers, I used the port forwarding inside VMWare. The servers themselves are connected through a host-only virtual adapter. This is working, but performing very badly. At most I get 700 kbps, but mostly far worse transfer rates, while the network interface itself is connected at 100 Mbps. This seems to be a common problem and the advice was to setup NAT using RRAS in Windows Server (I am using Windows Server 2008 x64).
In the NAT node I added the virtual network interface as a private interface. Also, I added the interface connected to the internet as a public interface, and checked "Enable NAT on this interface". I left address pool blank, and setup a new port with an address on "this interface", incoming port 81, private address is the address of one of the VM's, outgoing port 80.
It is not working, I am unable to connect to port 81, while I made sure the firewall is turned off. In the event viewer I can see the following message logged:
Unable to add the interface Internal with the Router Manager for the IPV6 protocol. The following error occurred: The parameter is incorrect.
Though it does not seem to me it is related to this issue..
Does anyone have suggestions? If more information is needed, feel free to ask.
Thanks in advance,
Mariëlla
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Sorry, maybe I did not make myself clear. I do not want to bridge the network. The host server is connected directly to internet (with a public address). I do not want the VM servers to have a public address. The host-only adapter is fine for this purpose, as this will enable the host server to perform NAT. As said, this is working - Though the problem is I am not succeeding at forwarding a port using RRAS.
When using NAT networking you should rather setup port forwadring from the VMware side instead of using RRAS as described here:
http://www.vmware.com
Lars
Problem resolved. Pretty stupid anyway.. The virtual machines were set to use the VMWare NAT device gateway on IP-address .2, while the host adapter was set on .1. In this scenario, the returning traffic is not routed via the host and lost. Changing the gateway on the virtual machine to .1 and disabling VMWare NAT on the affected interface made it all work.
NAT is now working through RRAS instead of VMWare..
Kind regards,
Mariëlla
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by: alex12714Posted on 2008-09-05 at 05:58:44ID: 22398281
When you use host-only adapter -it means that it is a shared network between your guest and a host, noone else allowed. I would suggest you switch netowkr adapter to be "bridged". Specify the IP address on your LAN and specify your port forwarding on the router to go to this IP address.