Allow VNC access to inside PC from the internet?

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Nov 20th, 2007
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I have a Cisco 837 just for home internet use. How can I allow VNC access (5800) or remote desktop (3389) from an external IP to my PC. Do I have to do port forwarding or something?

Attached is my config, I want to allow external IP to my laptop on the VNC ports and remote desktop.


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JORGE RODRIGUEZ Tue, 11/20/2007 - 14:09
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You could try this , say local information is, Local IP: , Global interface: dialer1

ip nat source static interface dialer1

to permit any from outside to on port 3389 rdp.

access-list 104 permit tcp any eq 3389 log

int dialter1

ip access-group 104 in


same static nat.

access-list 104 permit tcp host host eq 3389 log

int dialter1

ip access-group 104 in



whiteford Tue, 11/20/2007 - 14:23
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Thanks, the router gives out DHCP so I guess I would just give it a static ip like as is the router ip and add your rules?

JORGE RODRIGUEZ Tue, 11/20/2007 - 16:07
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Yes, also make sure when configuring static in the PC that it also have dns information as well so that it can get to outbound internet, do c:\ipconfig /all on the other machines and take note of dns information.




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