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To subscribe or unsubscribe via the World Wide Web, visit https://lists.isc.org/mailman/listinfo/dhcp-users or, via email, send a message with subject or body 'help' to dhcp-users-requ...@lists.isc.org You can reach the person managing the list at dhcp-users-ow...@lists.isc.org When replying, please edit your Subject line so it is more specific than "Re: Contents of dhcp-users digest..." Today's Topics: 1. DHCP Touched leases are not cleaned (Victor Petrescu) 2. Re: DHCP Touched leases are not cleaned (Patrick Trapp) ---------------------------------------------------------------------- Message: 1 Date: Fri, 18 Nov 2022 00:09:57 +0200 From: Victor Petrescu <victor.petrescu.nico...@gmail.com> To: dhcp-users@lists.isc.org Subject: DHCP Touched leases are not cleaned Message-ID: <CAK95HNsQw1qjkE3jLu0sqE+x0MFVcR2gvoD+Hz=qtOs=99H=_...@mail.gmail.com> Content-Type: text/plain; charset="utf-8" Hi there, Currently I'm having an issue with the dhcp leases regarding the number of available IPs. I have some devices that are renewing their IP addresses at an interval of 15 minutes. The problem is that after the DHCP Server is offering the new IP, the old one is blocked and cannot be used. This way a lot IPs are blocked and eventually it goes to "no free leases". And I have to clean manually the dhcpd.leases file by removing it. For the moment the workaround is to manually bind the IP to the MACs that are facing this issue. This way that MAC is not changing the IP. I attached a prinscreen of the current values of an IP pools that are used. I'm hiting a 132 touch IPs which seems that cannot be used. Is there any parameter that can be set or an option to be configured in order to prevent this ? Thank you ! -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.isc.org/pipermail/dhcp-users/attachments/20221118/ddcf751a/attachment-0001.htm> -------------- next part -------------- A non-text attachment was scrubbed... Name: Screenshot_587.png Type: image/png Size: 12073 bytes Desc: not available URL: <https://lists.isc.org/pipermail/dhcp-users/attachments/20221118/ddcf751a/attachment-0001.png> ------------------------------ Message: 2 Date: Thu, 17 Nov 2022 22:50:07 +0000 From: Patrick Trapp <ptr...@nex-tech.com> To: Users of ISC DHCP <dhcp-users@lists.isc.org> Subject: Re: DHCP Touched leases are not cleaned Message-ID: <mn0pr12mb6295caeb33df237070c51a7fe6...@mn0pr12mb6295.namprd12.prod.outlook.com> Content-Type: text/plain; charset="us-ascii" I don't know off-hand, but I think you will more likely get a more useful response if you can share the configuration that you are working with. It would not have to be all of it, but a representative part of it, obfuscated if you wish, could help those helping you. ________________________________ From: dhcp-users <dhcp-users-boun...@lists.isc.org> on behalf of Victor Petrescu <victor.petrescu.nico...@gmail.com> Sent: Thursday, November 17, 2022 16:09 To: dhcp-users@lists.isc.org <dhcp-users@lists.isc.org> Subject: DHCP Touched leases are not cleaned CAUTION: This email originated from outside of the company. Do not click links or open attachments unless you recognize the sender and know the content is safe. Hi there, Currently I'm having an issue with the dhcp leases regarding the number of available IPs. I have some devices that are renewing their IP addresses at an interval of 15 minutes. The problem is that after the DHCP Server is offering the new IP, the old one is blocked and cannot be used. This way a lot IPs are blocked and eventually it goes to "no free leases". And I have to clean manually the dhcpd.leases file by removing it. For the moment the workaround is to manually bind the IP to the MACs that are facing this issue. This way that MAC is not changing the IP. I attached a prinscreen of the current values of an IP pools that are used. I'm hiting a 132 touch IPs which seems that cannot be used. Is there any parameter that can be set or an option to be configured in order to prevent this ? Thank you ! -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.isc.org/pipermail/dhcp-users/attachments/20221117/9497c915/attachment.htm> ------------------------------ Subject: Digest Footer _______________________________________________ ISC funds the development of this software with paid support subscriptions. Contact us at https://www.isc.org/contact/ for more information. dhcp-users mailing list dhcp-users@lists.isc.org https://lists.isc.org/mailman/listinfo/dhcp-users ------------------------------ End of dhcp-users Digest, Vol 169, Issue 5 ******************************************