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DHCP Server Issues

DHCP and DNS
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  • K
    KelvinW
    last edited by Aug 22, 2023, 4:02 AM

    I have a pfsense running 1 lan with a DHCP server. My DHCP Subnet mask is 255.255.252.0, my lan range is 192.268.4.1-192.168.7.254. Until now I have only been running my DHCP Server from 192.168.7.1-197.168.7.254 and it has worked great. but now with all the addresses being used I changed my DHCP Server to 192.168.5.1-192.168.7.254. The problem is that it doesn't seem like I'm getting any addresses in the range other than 192.168.7.x , what could be wrong?

    G V J 3 Replies Last reply Aug 22, 2023, 5:18 AM Reply Quote 0
    • G
      Gertjan @KelvinW
      last edited by Aug 22, 2023, 5:18 AM

      @KelvinW

      With all addresses/leases actively used in the initial pool 192.168.7.1-192.168.7.254, it shows in the DHCP server log that it refuses to hand over more leases, out of the 192.168.5.1-192.168.6.255 range ?
      It says to the requesting device : sorry, no more leases available ?

      No "help me" PM's please. Use the forum, the community will thank you.
      Edit : and where are the logs ??

      K 1 Reply Last reply Aug 22, 2023, 4:02 PM Reply Quote 0
      • K
        KelvinW @Gertjan
        last edited by Aug 22, 2023, 4:02 PM

        @Gertjan

        How do I fix the problem.....I've tried to clear DHCP Leases and it still doesn't work.

        1 Reply Last reply Reply Quote 0
        • V
          viragomann @KelvinW
          last edited by Aug 22, 2023, 4:39 PM

          @KelvinW said in DHCP Server Issues:

          The problem is that it doesn't seem like I'm getting any addresses in the range other than 192.168.7.x , what could be wrong?

          Even on devices which didn't ever pull a lease from this server?

          Normally devices get the former IPs again on new requests.
          But you can try to clear existing leases in Status > DHCP Leases.

          1 Reply Last reply Reply Quote 0
          • J
            johnpoz LAYER 8 Global Moderator @KelvinW
            last edited by Aug 22, 2023, 5:40 PM

            @KelvinW said in DHCP Server Issues:

            he problem is that it doesn't seem like I'm getting any addresses in the range other than 192.168.7.x , what could be wrong?

            Can we see your dhcp server page.

            login-to-view

            dhcp can start from the end of the range or the beginning, not sure which way pfsense dhcp server likes to go. But also if a client already had an IP in the 192.168.7, he would normally request that IP again, and not get some IP from the beginning of the range.

            An intelligent man is sometimes forced to be drunk to spend time with his fools
            If you get confused: Listen to the Music Play
            Please don't Chat/PM me for help, unless mod related
            SG-4860 24.11 | Lab VMs 2.7.2, 24.11

            T 1 Reply Last reply Aug 22, 2023, 6:42 PM Reply Quote 0
            • T
              the other @johnpoz
              last edited by Aug 22, 2023, 6:42 PM

              @johnpoz
              @johnpoz said in DHCP Server Issues:

              dhcp can start from the end of the range or the beginning, not sure which way pfsense dhcp server likes to go.

              well, this is definitely not really evidence based...for what it might serve: the last 20 new clients here always got IPs from beginning of range via dhcp...
              :)

              the other

              pure amateur home user, no business or professional background
              please excuse poor english skills and typpoz :)

              J 1 Reply Last reply Aug 22, 2023, 7:01 PM Reply Quote 0
              • J
                johnpoz LAYER 8 Global Moderator @the other
                last edited by Aug 22, 2023, 7:01 PM

                @the-other yeah they like to start at one end and move through, have seen both ways - just never really paid attention to which direction pfsense likes to go.

                But if his clients had IPs in the 7.x and he deleted the leases, they would still like getting their old IPs back.. The way to check if new Ips are being handed out would be to change the range so 7 is no longer available and then delete the old leases.. Then client would have to get something in the range.

                An intelligent man is sometimes forced to be drunk to spend time with his fools
                If you get confused: Listen to the Music Play
                Please don't Chat/PM me for help, unless mod related
                SG-4860 24.11 | Lab VMs 2.7.2, 24.11

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