pfsense 2.1-releas error network conflicts with address configured on interface

  • Help with this error when I try to do a static route on the LAN, the Following Were input errors detected

    This Conflicts with network address configured on interface.

    LAN IP address:

    System> Gateways> Static Routes> Edit route

    Destination network

    error: This network Conflicts with address configured on interface.

    atached image error

    Thanks for collaboration

    Mauricio Niño Avella
    ![Screenshot - 11262013 - 10:49:18 AM.png](/public/imported_attachments/1/Screenshot - 11262013 - 10:49:18 AM.png)
    ![Screenshot - 11262013 - 10:49:18 AM.png_thumb](/public/imported_attachments/1/Screenshot - 11262013 - 10:49:18 AM.png_thumb)

  • That's not a valid static route, hence it's rejected. You don't want that static route. Describe what you're trying to accomplish and someone might be able to assist.

  • cmb Hi,

    why not a valid static route?

    If I am trying to route Network

    The LAN IP address is, and the path I'm creating on the LAN interface.

    This Conflicts with network address configured on interface.

    The picture attached is an example sent to another network and another IP LAN interface

    If I am trying to route Network

    This Conflicts with network address configured on interface.

    This is happening when I try to route the network that owns the IP address of the LAN interface.


    Mauricio Niño Avella

  • The very fact that your LAN interface is with a CIDR of /24 means the router already knows that interface is for the full /24 of that subnet.  In effect, your trying to add a duplicate in the form of a static.

  • Hi,  cmb , Brutal

    You say that the router (Pfsense), you know that your gateway to the same CIDR IP is the LAN interface.

    as a result there is no need to do this route?

    What I wonder is that in Pfsense 2.0.1-RELEASE (amd64) to do this type of routing.

    I am sending attached image where Pfsense 2.0.1-RELEASE (amd64) version if you can do this type of routes.


    Mauricio Niño Avella

  • Rebel Alliance Developer Netgate

    It was an error/misconfiguration to allow it before. The input validation is correct now. You do not need nor do you want that route manually added.

    By having an IP in the subnet the OS gets a route to the subnet automatically for that link. A static route can/will break that.

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