NAT and Dynamic DNS



  • HI i want to enter from the WAN (from anywhere from the Internet) into my pc on lan behind pfsense box.

    xxxx.no-ip.biz:5800 (wan) –-> (lan) PC with VNC server x.x.x.x:5800

    I made port forwrd:

    If          Proto        Ext. port range  NAT IP  Int. port range  Description                                                                                                           
    WAN   TCP/UDP 5800                      192.168.2.3    5800
                                                          (ext.: any)

    and automatic firewall rulle enabled:

    Proto          Source  Port  Destination  Port  Gateway  Description
    TCP/UDP      *        *  192.168.2.3    5800  *

    Windows XP firewall added rulle for VNC server and his ports.



  • The machine inside your LAN can get out to the internet and has the pfSense as gateway? Does the dyndns account actually resolve to the correct IP?



  • Yes PC use pfsence as gateway and has access to internet and updated public address is real pfsense wan address.



  • @Piplfox:

    If          Proto        Ext. port range  NAT IP  Int. port range  Description                                                                                                           
    WAN   TCP/UDP 5800                      192.168.2.3    5800
                                                          (ext.: any)

    Try setting the External address to 'Interface Address', instead of 'any'.


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