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    Problem with DHCP on pfsense 2.2.6

    DHCP and DNS
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    • L
      leonardo.silva311290
      last edited by

      Hi People, I am with problems to applied any changed im my DHCP on pfsense 2.2.6. For example, if i changed an Ip that I provided for my client, the configuration in the pfsense interface changed, but, the client can not to get the changed.

      All the change that I try to do in the DHCP services stay in the same scenario.

      I would like to know if someone already by the same problem, and which was the best solution to this problem.

      Best Regards,

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      • C
        cmb
        last edited by

        You have to release and renew on the client, if the client requests a renewal of its existing IP, it'll be granted that renewal.

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        • L
          leonardo.silva311290
          last edited by

          Hi CMB, thank you for reply

          I already executed this commands to renew Ip, but the problem still persists, any changed that i do in the DHCP, doesn't change, i make a test changed the Ip of my DNS SERVER in the DHCP and occured the same scenario.

          Do you think that is a problem with version 2.2.6?

          i didn't found about this in my searches.

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          • johnpozJ
            johnpoz LAYER 8 Global Moderator
            last edited by

            you have to RELEASE, and then get a new IP via discover…  If the client asks for an existing lease, and that lease still exists on the dhcp server then yeah its going to get the old one.

            If you had a reservation for a machine with mac xyz to get ip 1.2.3.4, and now you want this mac xyz to get IP 1.2.3.5 then on the client RELEASE the old lease.. Then get a new one via discover (ipconfig /renew in windows sure after the /release)

            Better yet just delete the OLD lease off the server.

            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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            • L
              leonardo.silva311290
              last edited by

              Hi johnpoz,

              Thank you for reply, im my case i am used the pfsense version 2.2.6, in my dhcp service there are option ARP Table Static Entry, this option are unchecked. I make a test changed my ip, after i executed this commands ipconfig /renew  and ipconfig /release. But  My Ip doesn't change

              This scenario are very strange.

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              • johnpozJ
                johnpoz LAYER 8 Global Moderator
                last edited by

                did you actually create a reservation??  Post up your reservation, and screen shot of your machine ipconfig /all

                I can tell there is no issue with using static IP or dhcp reservations in pfsense.  I use many of them…  Both back on 2.2.6 and with current 2.3

                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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                • L
                  leonardo.silva311290
                  last edited by

                  Hi johnpoz,

                  Thank you for help,  I resolve my problem, through of the executing an stop and start im my dhcp service and executing a clean in my arp table.

                  When I try to do a restart in my dhcp service, doesn't work. I don't know if this is a bug of the version 2.2.6

                  Best Regards.

                  1 Reply Last reply Reply Quote 0
                  • johnpozJ
                    johnpoz LAYER 8 Global Moderator
                    last edited by

                    not sure what you think your arp table had to do with a dhcp lease.. I can tell you that in 2.2.6 I never had any problems restarting dhcp..

                    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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                    • L
                      leonardo.silva311290
                      last edited by

                      Thank you for reply

                      The problem was solved with stop and start services DHCP.

                      Thank for help of all the people.

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                      • M
                        moikerz
                        last edited by

                        Sounds like the problem was you renewed and then released, instead of releasing and then renewing.

                        1 Reply Last reply Reply Quote 0
                        • johnpozJ
                          johnpoz LAYER 8 Global Moderator
                          last edited by

                          ^ hehe that is funny.. But your right that is how he wrote it

                          "after i executed this commands ipconfig /renew  and ipconfig /release"

                          Nope that sure wouldn't work..

                          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

                          1 Reply Last reply Reply Quote 0
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