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    using pfSense DHCP to service other subnets via relay

    Scheduled Pinned Locked Moved DHCP and DNS
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    • C
      coreybrett
      last edited by

      I currently have a Windows DHCP server that handles all of our company's subnets via relays. How would I configure pfS to replace this old server?

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      • jimpJ
        jimp Rebel Alliance Developer Netgate
        last edited by

        pfSense can't act as a server for multiple subnets unless it has a direct L2 connection to each subnet (no relays).

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        • C
          coreybrett
          last edited by

          Is this a pfS limit, or the underlying dhcpd?

          JKnottJ 1 Reply Last reply Reply Quote 0
          • jimpJ
            jimp Rebel Alliance Developer Netgate
            last edited by

            A limitation of pfSense

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            • C
              coreybrett
              last edited by

              Ok, thanks. I guess I'll just P2V the old server.

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              • JKnottJ
                JKnott @coreybrett
                last edited by

                @coreybrett said in using pfSense DHCP to service other subnets via relay:

                Is this a pfS limit, or the underlying dhcpd?

                It's because DHCP initially uses broadcasts, which are not passed through routers. You have to set up a relay agent to get around that. PfSense can be configured as a relay, but I haven't tried that.

                PfSense running on Qotom mini PC
                i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
                UniFi AC-Lite access point

                I haven't lost my mind. It's around here...somewhere...

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