3 Replies Latest reply on Oct 14, 2014 11:28 AM by cj!

    Setup DHCP reservation

    ss_daveh New Member

      I want to setup a DHCP pool and have two addresses that receive DHCP, but will always get that address as this device will be moved from the network often.

       

      I know the option for ip dhcp database local allows for persistance if the router is rebooted but could not find an option to map a specific address to a MAC address or other option.

       

      My thought was to set the DHCP lease timer to be something high, like 1 week, but have not tested any other caveats of this. Does anybody have any suggestions?


      Thanks

        • Re: Setup DHCP reservation
          cj! Beta_User

          Hi ss_daveh:

           

          Thanks for posting your question in the Support Community.  Here's an example configuration with DHCP address reservations:

           

          !

          ip dhcp database local

          ip dhcp excluded-address 192.168.0.1 192.168.0.99

          ip dhcp excluded-address 192.168.0.200 192.168.0.254

          !

          ip dhcp pool "LAN"

            network 192.168.0.0 255.255.255.0

            dns-server 192.168.0.13 192.168.0.14

            default-router 192.168.0.254

          !

          ip dhcp pool "Mike-MacBook"

            host 192.168.0.100 255.255.255.0

            hardware-address a1:b2:c3:d4:e5:01 ethernet

          !

          ip dhcp pool "Henry-iMac"

            host 192.168.0.101 255.255.255.0

            hardware-address a1:b2:c3:d4:e5:02 ethernet

          !


          I believe reservations must be within non-excluded ranges.  Check out the application note Configuring DHCP in AOS for more, including CLI and GUI examples!


          Best,

          Chris


          Edited to correct syntax (dhcp not dhcp-server)

            • Re: Setup DHCP reservation
              ss_daveh New Member

              Worked perfect as a concept.

               

              Not sure if its just firmware related but the CLI commands were slightly different:

               

              'ip dhcp pool' instead of ip dhcp-server pool'

               

              But that was a quick find and update.

               

              Thanks for the help cj

                • Re: Setup DHCP reservation
                  cj! Beta_User

                  Good catch--thank you.  I lifted that example from an old config and the command was changed in a more recent version of AOS.  Just edited the example in case others wish to use the example after finding the article in the future. 

                   

                  Chris