Unable to communicate



  • I have installed pfsense and everything seemed to be ok. But i have a permanent "Unable to communicate to pfSense.com. Please check DNS, default gateway, etc." problem. I am running pfsense on a test box so far, which is inside my LAN (with both 192.168.100.* subnet addresses for LAN and WAN interfaces). I am able to ping outer IPs, though pfsense site is still unreachable.

    Any hints will be appreciated. Thanx in advance.



  • LAN and WAN in the same subnet will never work.
    You mess the routing table up like this.

    Only have WAN in the subnet which provides internet-access.
    Have LAN in its own subnet.



  • @GruensFroeschli:

    LAN and WAN in the same subnet will never work.
    You mess the routing table up like this.

    Only have WAN in the subnet which provides internet-access.
    Have LAN in its own subnet.

    Theoretcally, they may work this way if properlly set. There is even an option in pfsense to disable the ARP-broadcast lest they mess the net if both interfaces are in the same network.

    Nevertheless, if you are sure they won't work together i'd better rely on your opinion.

    Thank you.



  • The option to suppres ARP messages refers to having two different subnets but the same physical layer.
    NOT if you the same subnet on both interfaces.



  • Strangely, but i am able to connect to the Internet with my WS using my test pfsense box as a gate.



  • If you expect people to help you then you'll need to fix your configuration first - put the LAN and WAN on different subnets.


  • Rebel Alliance Developer Netgate

    If you absolutely must have the same subnet on WAN and LAN, why not just bridge the LAN interface to the WAN interface?



  • After proper set of the interfaces everything turned to be just fine. Thanx everyone for assistance!

    Update (notice for possible further hardware issues): I run pfSense on IBM xSeries 220 server with dual P3 CPU/SCSI RAID-1. No additional configuration needed to suit the hardware.


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