I do not believe it is possible directly but it should be indirectly using different subnets (with per subnet different lifetimes) in a shared network. Note you can also guard a pool (but not a subnet) using the UNKNOWN client class.
Regards Francis Dupont <fdup...@isc.org> Gibbins, John (IM&T, Black Mountain) writes: > --===============2523206312931103576== > Content-Language: en-US > Content-Type: multipart/alternative; > boundary="_000_SYAPR01MB2671C8209AFC4DC129FA2B0EF3910SYAPR01MB2671ausp_ > " > > --_000_SYAPR01MB2671C8209AFC4DC129FA2B0EF3910SYAPR01MB2671ausp_ > Content-Type: text/plain; charset="us-ascii" > Content-Transfer-Encoding: quoted-printable > > I am trying to configure a kea server as a pilot to replace an our ISC dhcp= > d servers. > > We currently specify different default lease times for reservations than we= > do for pools, using much smaller lifetimes for pools. We specify a defaul= > t-lease-time for the subnet (or inherit a global value) to cover the reserv= > ations and override this for the pools within the subnets. We do not inclu= > de reservations within pools (in kea terms: "reservation-mode": "out-of-poo= > l"). > > I gather from lists that this is not yet possible: > (https://lists.isc.org/mailman/htdig/kea-users/2017-March/000898.html, http= > ://kea-users.7364.n8.nabble.com/Kea-users-lease-time-td384.html) > > Are there any plans to implement this? This could be a show stopper for ou= > r migration to kea, unless I can find a workaround. > > Background: We current run a dozen servers spread around the country with = > most hosts obtaining their address via a reservation with a long lease time= > , but visitors from a different site are given a short lease address from a= > pool which is restricted to a list of known machines via over 20,000 subcl= > ass definitions. We run dual-stack across the organisation so want to do t= > his for both IPv4 and IPv6 pools. > > Regards > johng > > > --_000_SYAPR01MB2671C8209AFC4DC129FA2B0EF3910SYAPR01MB2671ausp_ > Content-Type: text/html; charset="us-ascii" > Content-Transfer-Encoding: quoted-printable > > <html xmlns:v=3D"urn:schemas-microsoft-com:vml" xmlns:o=3D"urn:schemas-micr= > osoft-com:office:office" xmlns:w=3D"urn:schemas-microsoft-com:office:word" = > xmlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml" xmlns=3D"http:= > //www.w3.org/TR/REC-html40"> > <head> > <meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dus-ascii"= > > > <meta name=3D"Generator" content=3D"Microsoft Word 15 (filtered medium)"> > <style><!-- > /* Font Definitions */ > @font-face > {font-family:"Cambria Math"; > panose-1:2 4 5 3 5 4 6 3 2 4;} > @font-face > {font-family:Calibri; > panose-1:2 15 5 2 2 2 4 3 2 4;} > /* Style Definitions */ > p.MsoNormal, li.MsoNormal, div.MsoNormal > {margin:0cm; > margin-bottom:.0001pt; > font-size:11.0pt; > font-family:"Calibri",sans-serif; > mso-fareast-language:EN-US;} > a:link, span.MsoHyperlink > {mso-style-priority:99; > color:#0563C1; > text-decoration:underline;} > a:visited, span.MsoHyperlinkFollowed > {mso-style-priority:99; > color:#954F72; > text-decoration:underline;} > span.EmailStyle17 > {mso-style-type:personal-compose; > font-family:"Calibri",sans-serif; > color:windowtext;} > .MsoChpDefault > {mso-style-type:export-only; > font-family:"Calibri",sans-serif; > mso-fareast-language:EN-US;} > @page WordSection1 > {size:612.0pt 792.0pt; > margin:72.0pt 72.0pt 72.0pt 72.0pt;} > div.WordSection1 > {page:WordSection1;} > --></style><!--[if gte mso 9]><xml> > <o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" /> > </xml><![endif]--><!--[if gte mso 9]><xml> > <o:shapelayout v:ext=3D"edit"> > <o:idmap v:ext=3D"edit" data=3D"1" /> > </o:shapelayout></xml><![endif]--> > </head> > <body lang=3D"EN-AU" link=3D"#0563C1" vlink=3D"#954F72"> > <div class=3D"WordSection1"> > <p class=3D"MsoNormal">I am trying to configure a kea server as a pilot to = > replace an our ISC dhcpd servers.<o:p></o:p></p> > <p class=3D"MsoNormal"><o:p> </o:p></p> > <p class=3D"MsoNormal">We currently specify different default lease times f= > or reservations than we do for pools, using much smaller lifetimes for pool= > s. We specify a default-lease-time for the subnet (or inherit a globa= > l value) to cover the reservations and > override this for the pools within the subnets. We do not include re= > servations within pools (in kea terms: "reservation-mode": "= > out-of-pool").<o:p></o:p></p> > <p class=3D"MsoNormal"><o:p> </o:p></p> > <p class=3D"MsoNormal">I gather from lists that this is not yet possible:<o= > :p></o:p></p> > <p class=3D"MsoNormal">(<a href=3D"https://lists.isc.org/mailman/htdig/kea-= > users/2017-March/000898.html">https://lists.isc.org/mailman/htdig/kea-users= > /2017-March/000898.html</a>, > <a href=3D"http://kea-users.7364.n8.nabble.com/Kea-users-lease-time-td384.h= > tml">http://kea-users.7364.n8.nabble.com/Kea-users-lease-time-td384.html</a= > >)<o:p></o:p></p> > <p class=3D"MsoNormal"><o:p> </o:p></p> > <p class=3D"MsoNormal">Are there any plans to implement this? This co= > uld be a show stopper for our migration to kea, unless I can find a workaro= > und.<o:p></o:p></p> > <p class=3D"MsoNormal"><o:p> </o:p></p> > <p class=3D"MsoNormal">Background: We current run a dozen servers spr= > ead around the country with most hosts obtaining their address via a reserv= > ation with a long lease time, but visitors from a different site are given = > a short lease address from a pool which > is restricted to a list of known machines via over 20,000 subclass definit= > ions. We run dual-stack across the organisation so want to do this fo= > r both IPv4 and IPv6 pools.<o:p></o:p></p> > <p class=3D"MsoNormal"><o:p> </o:p></p> > <p class=3D"MsoNormal">Regards<o:p></o:p></p> > <p class=3D"MsoNormal">johng<o:p></o:p></p> > <p class=3D"MsoNormal"><o:p> </o:p></p> > </div> > </body> > </html> > > --_000_SYAPR01MB2671C8209AFC4DC129FA2B0EF3910SYAPR01MB2671ausp_-- > > --===============2523206312931103576== > Content-Type: text/plain; charset="us-ascii" > MIME-Version: 1.0 > Content-Transfer-Encoding: 7bit > Content-Disposition: inline > > _______________________________________________ > Kea-users mailing list > Kea-users@lists.isc.org > https://lists.isc.org/mailman/listinfo/kea-users > > --===============2523206312931103576==-- > _______________________________________________ Kea-users mailing list Kea-users@lists.isc.org https://lists.isc.org/mailman/listinfo/kea-users