Hello all,


ISSUE

I have, after some days of "hard" work, managed to correctly configure kvm on a Centos 5.5 host. I have 2 VM running successfully. Since I only have one public IP address (for the kvm host) I am trying to setup port forwarding (using IP tables). And everything seems to work fine. When I rdp to 'hostname.com:3389' I successfully get the login screen for my Windows XP VM.

The problem starts after logging in... As soon as I provided my credentials in the Windows XP VM the rdp session disconnect/reconnects... It all happens so fast that I cannot really do anything (in a matter of seconds I am disconnected and reconnected again).


TROUBLESHOOTING

So what have I already tried/checked?
1. I tested the port forwarding the other VM (a Centos system) and I can successfully connect using ssh (and no disconnects).
2. I checked that after I created the iptables rules I could still access the host and the Internet from my Windows XP VM.


LOGS/OUTPUT

PREROUTING rule:
FORWARD rule:
To me this all should work... Unfortunately it does not! Hope somebody can help me!

Can you connect to the XP machine from the VM host machine, using rdesktop? That would eliminate port forwarding as a problem. Can you connect using, for example, TightVNC instead? (I take it your XP machine still gives you a qemu console?)

Thanks for your suggestion... I tried to connect to the WinXP system using rdesktop remotely (so not from another VM guest, but over the Internet) and believe it or not, that works fine! No disconnects at all! So it seems that the build-in RDP client in Windows is the culprit. I tried playing with its settings to make it work, but so far I have not been able to get it to work...

So any suggestions are more than welcome!

Perhaps you don't have all your updates installed on the Windows XP VM? One of those updates is an update to the remote desktop protocol. Update RDP at the client end as well.