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    Dhcp-host Option?

    Scheduled Pinned Locked Moved DHCP and DNS
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    • johnpozJ
      johnpoz LAYER 8 Global Moderator
      last edited by

      Well I see that it used the name android-number

      So still trying to understand what your trying to do? Did android see that it got name tablet-RMo, is it using that name?  What name do you think should be in dns?

      Why don't you assign the static a specific IP< and then setup a dns name whatever you want it to be to that IP you hand out?

      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 2.8, 24.11

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      • arrmoA
        arrmo
        last edited by

        Hi,

        I just want the name and MAC to be associated, but then assign an dynamic IP and let the name resolve - don't want to manually set all the IP addresses on the network.

        This worked / works fine with dnsmask, just not dhcpd (likely me though).

        Thanks!

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        • johnpozJ
          johnpoz LAYER 8 Global Moderator
          last edited by

          Still a bit confused at what your after..  So my son's phone is android.  And I have a fire around here somewhere I could turn on and check what it puts in the lease table

          Ummm if your going to spend time putting in info to hand out name, why not just hand out an IP and create the dns record?

          Can you not set the phone to register its name - I will take a look at my sons phone and see - notice how my phone registers its name in the dhcp leases.  Still what exactly are you wanting to accomplish - why does it matter if phones have specific names.  Can't you just look them up in the dhcp lease table by mac if need the IP of a phone?  Why do they need to resolve via dns with some special name - notice the android resolves via dns with the name it registered.

          I think android makes it a bit difficult to change the name, have to be rooted.  But let me check my son's phone when he wakes up to see if can change it under settings, developer.

          hmmm - trying to add attachments getting 500 internal error.  Will try again latter to attach my examples showing what I see for devices..

          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 2.8, 24.11

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          • arrmoA
            arrmo
            last edited by

            NP, thanks for trying! And you're right - Android devices are difficult to change hostnames (as you say, have to be rooted).

            I'll just hard-code an IP address - was trying to avoid that, but it's not a real big issue by any means.

            Thanks again!

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            • arrmoA
              arrmo
              last edited by

              Finally getting back to this … :(

              This is still quite a pain - as I have 20+ clients (family tablets, phones, PC's, WiFi AP's, etc.) ... and to assign an IP to each one, I need to find every one of them and reset them (as their new IP has to be outside of the pool).

              Is there really no way to just have a mapping from MAC to hostname, and let DHCP hand out IP addresses as it wants?

              Thanks!

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              • johnpozJ
                johnpoz LAYER 8 Global Moderator
                last edited by

                "and to assign an IP to each one, I need to find every one of them and reset them"

                What??  Reset them?  Let them grab a lease..  Then just create a reservation for them from that lease, then use whatever name and IP you want.. So for example here is my sons phone.

                I click that button - and next time it gets or renews it will use the new IP.  And the name I create will be used for dns, etc..

                clickhere.png
                clickhere.png_thumb

                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 2.8, 24.11

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                • arrmoA
                  arrmo
                  last edited by

                  Hi,

                  But the IP they currently have is from the pool, and the static IP has to be from outside the pool … so I have to change the IP on the pfSense end (to add the entry), but then it doesn't match the IP the client has ... no?

                  Thanks!

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                  • johnpozJ
                    johnpoz LAYER 8 Global Moderator
                    last edited by

                    It will change when it goes to renew.. I am not understanding what your concern is?

                    See how my sons phone had .225 before - this is inside my scope.. I created a reservation calling it just android.. See it got the new IP .207 which is outside my scope and I can resolve it via the name I used.

                    Worse thing that happens if you have a stale lease that will just time out if client doesn't properly release the old one..

                    changes.png
                    changes.png_thumb

                    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 2.8, 24.11

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                    • arrmoA
                      arrmo
                      last edited by

                      Makes sense. I guess my real issue is that I have a history of bandwidthd data (~ 3 months worth). By having to change the IP addresses (for the same client) I lose the legacy data. Just something I have to live with I guess. I admit, I'm used to dnsmasq, and it did have this capability (to just map a MAC to a hostname, and still run DHCP).

                      Thanks for the help!!!

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                      • johnpozJ
                        johnpoz LAYER 8 Global Moderator
                        last edited by

                        who says you have to loose the data, just change the legacy data to reflect the new IP.  I would think if you were wanting to track IPs bandwidth, and have been doing so for 3 months that you would of had reservations in for every device you wanted to track from the get go.

                        If you just let clients get a lease, there is nothing saying that couldn't change at some point in the future, etc.  Only way to be sure a client maintains a IP is to create a reservation or static setup the IP on the box, etc..

                        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 2.8, 24.11

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                        • arrmoA
                          arrmo
                          last edited by

                          Yep, agreed - likely easier to just purge the data, start again (as there are thousands of lines in the table, don't really want to change each line …  ;)).

                          Thanks for all the help!

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