I assume what OP is talking about is the same behavior from ISC DHCP where "fixed-address" did not store a lease so any device that matched the conditions could get the IP.
----- Original Message ----- > From: "Anders Rosendal" <[email protected]> > To: [email protected] > Cc: "kea-users" <[email protected]> > Sent: Wednesday, July 21, 2021 4:09:11 PM > Subject: Re: [Kea-users] Prevent lease storage for some subnets > Hi > Only a user myself, and have not read if this is possible, although I totally > agree it's a good idea. > In an ISP environment it's fairly common to have /30 or /31 ptp-links for mgmt > of cpe's. For these scenarios I have seen a few inhouse build solutions which > do what we call "gi+1", i.e. when a discover/request comes in just reply with > adding "1" to the gi-address of the request. > With this solution autoconfiguration of equipment can be performed, also if > the > access network allows the IP can be configured statically during initial > autoconfiguration. > If this feature is not available, I do think it would be a useful addition. > Regards Anders R > On Sat, 17 Jul 2021 at 14:31, < [ mailto:[email protected] | > [email protected] ] > wrote: >> Hi all. >> Our network has a lot of /30 and /31 subnets, designed for a single >> device on a single switchport. So our kea configuration includes lots of >> subnets with only 1 address in the DHCP pool. We currently issue >> addresses using the DHCP relay address, and this works very well. >> But we have some mobile devices that move from port to port, and they >> occasionally cannot receive an address because the last device to attach >> to that switchport is still holding the lease. >> We would like to configure kea to prevent it from storing leases for >> these subnets: if another device attaches to that switchport, we'd like >> kea to re-issue the address. (Note that we also have some traditional >> networks, and we prefer kea to record and track leases normally for >> those subnets). >> Is this behavior currently supported? Or will it require new >> development or external integration to remove the lease from the >> database? >> Thank you, >> David Potter >> _______________________________________________ >> ISC funds the development of this software with paid support subscriptions. >> Contact us at [ https://www.isc.org/contact/ | https://www.isc.org/contact/ ] >> for more information. >> To unsubscribe visit [ https://lists.isc.org/mailman/listinfo/kea-users | >> https://lists.isc.org/mailman/listinfo/kea-users ] . >> Kea-users mailing list >> [ mailto:[email protected] | [email protected] ] >> [ https://lists.isc.org/mailman/listinfo/kea-users | >> https://lists.isc.org/mailman/listinfo/kea-users ] > _______________________________________________ > ISC funds the development of this software with paid support subscriptions. > Contact us at https://www.isc.org/contact/ for more information. > To unsubscribe visit https://lists.isc.org/mailman/listinfo/kea-users. > Kea-users mailing list > [email protected] > https://lists.isc.org/mailman/listinfo/kea-users _______________________________________________ ISC funds the development of this software with paid support subscriptions. Contact us at https://www.isc.org/contact/ for more information. To unsubscribe visit https://lists.isc.org/mailman/listinfo/kea-users. Kea-users mailing list [email protected] https://lists.isc.org/mailman/listinfo/kea-users
