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I had a problem with opening port between my host (windows 7) and a virtual box (windows xp) system.

On my host win7 system, I added a port from the inbound rule (port 777) under the firewall advance settings' exception tab. I also added the same port under the firewall exception from the virtual box (winxp) system. Now, when I attempted to do this from my host win 7 system:

telnet ip_add_of_winxp_vbox 777

and vice versa (from the virtual box winxp system):

telnet ip_add_of_host_pc 777

I was not able to get connected.

On my host machine (the win7) I had apache (xampp) installed so in my winxp system from the virtual box, I attempted:

telnet ip_add_of_host_pc 80

using port 80, I was able to get a response. But using other ports (port 777 and others), I cannot really connect. Can you help me out of here guys?

PS: I can ping both ways however but just telnet-ting a specific custom created port doesn't work. Both systems were connected on the same gateway.

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  • What app are you running on port 777? Just opening a hole in the firewall doesn't open the port on the machine. Go open a cmd prompt and type "netstat -ano | find '777' " and see if it's open. Unless of course you set apache to listen on port 777
    – Jason H
    Jun 2, 2013 at 3:28
  • thanks Jason. but it does not actually appeared from the netstat -ano.. I am attempting to open a port for testing on my python program.. any suggestions?
    – Aldee
    Jun 2, 2013 at 3:32
  • Yeah, if you don't see it when you run the netstat -an command then your python script is failing. regardless of your firewall if it doesn't show up with the netstat command it's not open. Check your python script.
    – Jason H
    Jun 2, 2013 at 3:33
  • Perhaps you need to open the port in Windows' firewall. Here's some resources.
    – martineau
    Jun 2, 2013 at 8:12
  • Maybe you can solve your networking problem by enabling the logging of packets on the guest or host side.
    – martineau
    Jun 2, 2013 at 15:49

1 Answer 1

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Both the OS's are seems to be in a single physical machine...one is on virtual machine and another on physical machine on the same system(Laptop)...

So try different ports for diffrent OS's...

I mean try 777 for windows 7 and 778 for xp in virtual box it may resolve the issue...

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  • Isn't the port of the VM NATted anyway?
    – Thomas Weller
    Jan 17, 2014 at 14:31

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