Netgate Discussion Forum
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Search
    • Register
    • Login

    Block LAN access from a computer on the LAN

    Scheduled Pinned Locked Moved Firewalling
    4 Posts 3 Posters 884 Views
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • M
      mrhub
      last edited by

      Hello.
      I have a testserver on my LAN (on a esxi host) that i don't want access to the rest of my LAN, only traffic out to the WAN.
      How do I this? Can I do this with some firewall rules?

      One option would be to add a second NIC to the esxi host and get a second IP range that cannot connect to the original LAN subnet but I would prefer to not buy a new NIC…

      Using a Firebox X550e

      1 Reply Last reply Reply Quote 0
      • dotdashD
        dotdash
        last edited by

        @mrhub:

        One option would be to add a second NIC to the esxi host and get a second IP range that cannot connect to the original LAN subnet but I would prefer to not buy a new NIC…

        This.
        If you dump it on the LAN, the traffic will not hit the firewall if it is going to another host on the LAN.

        1 Reply Last reply Reply Quote 0
        • P
          podilarius
          last edited by

          The only way to the separate it from the LAN. This means either putting it on its own vLAN or its own physical switch/NIC. Once it is on a different subnet, you can control how the traffic goes out to the internet or LAN. If it has a application FW like Microsoft FW, you could use that, but it could easily be disabled.

          1 Reply Last reply Reply Quote 0
          • M
            mrhub
            last edited by

            I used VLAN to solve it, works like a charm! :)
            ESXi can tag traffic out from the host.
            If anyone is interested I can make a more detailed description how I did it.

            Using a Firebox X550e

            1 Reply Last reply Reply Quote 0
            • First post
              Last post
            Copyright 2025 Rubicon Communications LLC (Netgate). All rights reserved.