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  1. #1
    0_o Mastermind keezel's Avatar
    Join Date
    Jun 2003

    VNC to a private IP

    I'm not entirely sure which forum this belongs on, so I apologize if this is the wrong one.

    I use VNC pretty frequently at work, but I have never VNC'd into a box behind a regular linksys/dlink consumer grade router that assigns IP addresses in the private range (192.168.0.X). I understand that this is a more secure way of doing things, but suppose I wanted to VNC into a PC with one of these private IP addresses? I have the WAN and Gateway IP addresses for the router, and even the internal private IP, but there is only space enough to enter one IP address in the VNC connection box. Any tips?


    I noticed the WAN IP assigned to the router is using a 21 bit mask, which leaves me 11 bits to subnet, right? So could I create an IP addressing scheme for whatever hosts are on this private network so long as my subnet mask is more than 21 bits?
    Last edited by keezel; December 9th, 2008 at 07:25 PM.

  2. #2
    Join Date
    Apr 2004
    Orrrr, you could just tell the router to forward all requests on the VNC port to the private machine of your choice, and call it a day?

  3. #3
    AO's Filibustier Cheap Scotch Ron's Avatar
    Join Date
    Nov 2008
    Swamps of Jersey
    Assuming your router is doing NAT and it supports VPN passthrough, you will need to port forward (setup done in router) the VNC traffic to the machine you want to VNC to. You will need to check to see what port your VNC software is using. I believe RealVNC is port 5900.

    If you require more assistance, please let us know what VNC software you are using, what specific router you are using and the local IP address of the machine you want to VNC to.

    In God We Trust....Everything else we backup.

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