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  1. #1
    Untangler
    Join Date
    Apr 2009
    Posts
    60

    Default Untangle in bridge mode

    I'm having some major issues trying to get bridge mode working.

    I have some added complexity because I am running untangle in a hyper-v virtual machine with virtual networks.

    From what I can tell, there are no problems with using the hyper-v legacy network cards. They appears to be on-line and I can communicate over the internet with the untangle box. The only fault I find is that the legacy network adapter's driver has a link state problem and so the two adapters always show disconnected and unknown in the network settings of untangle. This could be related, but I don't know enough to be able to tell.

    I think I am just missing something simple. There unfortunately is no documentation that adequately describes how bridging works and how it should be setup.

    Here's what I've got virtually speaking:

    WAN -> vswitch -> eth0-Untangle-eth1 -> vswitch -> Server

    Where 'vswitch' is a virtual switch. (There are two virtual switches)

    Untangle eth0 is configured as WAN, with one of my available public IP addresses. Lets call it 204.100.100.184/24. Gateway would be 204.100.100.1.

    Untangle eth1 is set to bridged with external/wan.

    My server is configured to a second public IP address. Lets say it is 204.100.100.183/24. Same gateway 204.100.100.1.

    For some reason I cannot get any communication between the untangle box and the server, nor from the server to the internet.

    In all the diagnostics I have done, it appears they are just completely unable to communicate. However, I have seen an arp entry show up on the untangle box with the IP and MAC address of my server when I try to ping the server. Its not consistent, but I did see this once, and so I figure there has to be partial functionality there and I am just missing something pretty obvious. However, monitoring TCPDUMP hasn't shown any traffic on the server at all, and from what I can tell I cannot find any associated traffic on the untangle box.

    If I switch the server directly to my WAN port it works fine. So no configuration issues there.

    Please help.

  2. #2
    Untangle Ninja
    Join Date
    Jan 2011
    Posts
    1,325

    Default

    When installing Untangle on VMWare, you have to configure the network adapters to 'Promiscuous Mode: Accept' (on the host itself, not in the individual VM), else at the very least bridging won't work.

    Something similar is probably necessary for Hyper-V.
    Last edited by johnsonx42; 03-20-2011 at 10:10 AM.

  3. #3
    Master Untangler
    Join Date
    Dec 2009
    Location
    Olympia, WA
    Posts
    113

    Default

    In hyper-v server r2/server 2008 r2+Hyper-v you need to check the allow mac spoofing checkbox for each of untangles legacy network cards, you can't see this checkbox from vista or server 2008, has to be 7 or r2.

    Otherwise Untangle can see the internet, but boxes behind can't.

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