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How do I check a remote machine and connection which is on another subnet and vlan on my UTM

Budgie2

I have a subnet set up on a shared port using vlan on UTM and all on different subnet from my working machine. 

I can of course access my UTM and can see the DHCP lease table which includes machines on the subnet I need to check but I cannot ping them from my machine or rather I do not know how to do this.

My problem is that the card machines and tills are playing up and I need to ensure that my network is all OK at least as far as being able to ping the hardware.

Grateful for some help on this please..



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  • 0

    I'm like Bob and a very visual learner.  Can you make a quick picture of your network setup with what subnet you have?  If they are on the same subnet, you should be able to ping everything, different subnets you will probably need some type of NAT or firewall rule for PING.

    If you have a Layer 2 switch, it can handle that subnet traffic as well.

    OPNSense 64-bit | Intel Xeon 4-core v3 1225 3.20Ghz
    16GB Memory | 500GB SSD HDD | ATT Fiber 1GB
    (Former Sophos UTM Veteran, Former XG Rookie)

Reply
  • 0

    I'm like Bob and a very visual learner.  Can you make a quick picture of your network setup with what subnet you have?  If they are on the same subnet, you should be able to ping everything, different subnets you will probably need some type of NAT or firewall rule for PING.

    If you have a Layer 2 switch, it can handle that subnet traffic as well.

    OPNSense 64-bit | Intel Xeon 4-core v3 1225 3.20Ghz
    16GB Memory | 500GB SSD HDD | ATT Fiber 1GB
    (Former Sophos UTM Veteran, Former XG Rookie)

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  • 0 in reply to Amodin

    The picture is a work in progress but the bottom line is that I work on a different subnet.  I have linked the sophos management network to my own machine but all the rest are stand alone until they get to the UTM.  I seem to have three choices, NAT which is beyond me as I have only used it in devices and they do it for me, firewall rule which I should be able to do with your guidance and last resort, to reconfigure my managed switch so that I am connected to the required subnet.

    I shall start on the firewall and call for help when I get stuck, which may not be too long!

    Good to hear from you again,

    Regards

    Alastair.

  • 0 in reply to Budgie2

    Hi Amodin,

    I set up a firwall rule just for this test, it did what I wanted and so I turned it off but the route seemed to be persistent.  I deleted it but I could still ping the remote  subnet. 

    Strange.  I had expected it to turn off when I removed the rule altogether.  Is that OK.  I expect it will stop soon but would be interested to understand.

    Thanks again

    Alastair.

  • 0 in reply to Budgie2

    I am on vacation and have some really limited access - sorry about that.  I will have to get in front of my UTM, unless someone can jump in before me.  I am not sure about the persistent connection after turning that off.  It might persistent until a reboot if you disabled/deleted it.

    I am literally on the beach at the moment, lol.

    OPNSense 64-bit | Intel Xeon 4-core v3 1225 3.20Ghz
    16GB Memory | 500GB SSD HDD | ATT Fiber 1GB
    (Former Sophos UTM Veteran, Former XG Rookie)

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