Re: [CentOS] DHCP max-lease-time maximum
> Thanks, I did know that and we are using this in other situations. But > as written in my third reply: > > To much work every MAC I dont have to type counts. Take some time to write a script, and you'll earn much time after. But it's a really, really bad idea to configure too long leases. Sylvain. Pensez ENVIRONNEMENT : n'imprimer que si ncessaire ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] DHCP max-lease-time maximum
Thanks, I did know that and we are using this in other situations. But as written in my third reply: To much work every MAC I dont have to type counts. Regards . Götz Am 07.07.16 um 11:44 schrieb Eero Volotinen: > Static MAC ip mapping on dhcp server? > > Eero > 7.7.2016 12.38 ip. "Götz Reinicke - IT Koordinator" < > goetz.reini...@filmakademie.de> kirjoitti: > > Am 06.07.16 um 18:19 schrieb John R Pierce: >> On 7/6/2016 1:27 AM, Götz Reinicke - IT Koordinator wrote: >>> :) ... the long lease is for some Accesspoints which we dont like to >>> configure static, just plug in and run. >> why not configure reservations for those access points? >> >> the downside of a really long lease time is if you have to change >> something like DNS, gateway, whatever, the clients with a really long >> lease will not 'see' the change until 50% of hte lease time expires as >> thats the default refresh. >> >> > Hi, what do you mean with "reservations"? the APs in question just need > an IP for connecting to the managemnt server which is in the same subnet. > > Thanks for your feedback . Götz > ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] DHCP max-lease-time maximum
On 7/7/2016 2:37 AM, Götz Reinicke - IT Koordinator wrote:
Hi, what do you mean with "reservations"? the APs in question just need
an IP for connecting to the managemnt server which is in the same subnet.
a DHCP reservation is when you convert a lease to a static reservation,
so each time that MAC/identifier asks for an IP, you give it one thats
preconfigured. typically you can just cut/paste an entry form
/var/state/dhcpd.leases into /etc/dhcpd.conf and tweak it to something
like...
host myhost {
hardware ethernet 00:01:08:00:ad:33;
fixed-address 192.168.0.249;
option host-name "myhost";
}
or if you're clever write a bit of perl to do that automatically,
--
john r pierce, recycling bits in santa cruz
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Re: [CentOS] DHCP max-lease-time maximum
Static MAC ip mapping on dhcp server? Eero 7.7.2016 12.38 ip. "Götz Reinicke - IT Koordinator" < goetz.reini...@filmakademie.de> kirjoitti: Am 06.07.16 um 18:19 schrieb John R Pierce: > On 7/6/2016 1:27 AM, Götz Reinicke - IT Koordinator wrote: >> :) ... the long lease is for some Accesspoints which we dont like to >> configure static, just plug in and run. > > why not configure reservations for those access points? > > the downside of a really long lease time is if you have to change > something like DNS, gateway, whatever, the clients with a really long > lease will not 'see' the change until 50% of hte lease time expires as > thats the default refresh. > > Hi, what do you mean with "reservations"? the APs in question just need an IP for connecting to the managemnt server which is in the same subnet. Thanks for your feedback . Götz ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] DHCP max-lease-time maximum
Am 06.07.16 um 18:19 schrieb John R Pierce: > On 7/6/2016 1:27 AM, Götz Reinicke - IT Koordinator wrote: >> :) ... the long lease is for some Accesspoints which we dont like to >> configure static, just plug in and run. > > why not configure reservations for those access points? > > the downside of a really long lease time is if you have to change > something like DNS, gateway, whatever, the clients with a really long > lease will not 'see' the change until 50% of hte lease time expires as > thats the default refresh. > > Hi, what do you mean with "reservations"? the APs in question just need an IP for connecting to the managemnt server which is in the same subnet. Thanks for your feedback . Götz ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] DHCP max-lease-time maximum
On 7/6/2016 1:27 AM, Götz Reinicke - IT Koordinator wrote: :) ... the long lease is for some Accesspoints which we dont like to configure static, just plug in and run. why not configure reservations for those access points? the downside of a really long lease time is if you have to change something like DNS, gateway, whatever, the clients with a really long lease will not 'see' the change until 50% of hte lease time expires as thats the default refresh. -- john r pierce, recycling bits in santa cruz ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] DHCP max-lease-time maximum
To much work ;) every MAC I dont have to type counts. /G Am 06.07.16 um 10:31 schrieb Eero Volotinen: > How about static ip mapping on dhcp? > > Eero ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] DHCP max-lease-time maximum
How about static ip mapping on dhcp? Eero 2016-07-06 11:27 GMT+03:00 Götz Reinicke - IT Koordinator < goetz.reini...@filmakademie.de>: > :) ... the long lease is for some Accesspoints which we dont like to > configure static, just plug in and run. > > /Götz > > Am 06.07.16 um 10:24 schrieb Eero Volotinen: > > DHCP uses 16 to represent an infinite lease. Try if it's > supported. > > Anyway, it's insane value as year lease time :) > > > > Eero > > > > 2016-07-06 11:22 GMT+03:00 Götz Reinicke - IT Koordinator < > > goetz.reini...@filmakademie.de>: > > > >> Hi, > >> > >> I m looking for the max value for max-lease-time. would 512640 seconds > >> (1 year) work? > >> > >> Thanks . Götz > >> > > > ___ > CentOS mailing list > CentOS@centos.org > https://lists.centos.org/mailman/listinfo/centos > > ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] DHCP max-lease-time maximum
:) ... the long lease is for some Accesspoints which we dont like to configure static, just plug in and run. /Götz Am 06.07.16 um 10:24 schrieb Eero Volotinen: > DHCP uses 16 to represent an infinite lease. Try if it's supported. > Anyway, it's insane value as year lease time :) > > Eero > > 2016-07-06 11:22 GMT+03:00 Götz Reinicke - IT Koordinator < > goetz.reini...@filmakademie.de>: > >> Hi, >> >> I m looking for the max value for max-lease-time. would 512640 seconds >> (1 year) work? >> >> Thanks . Götz >> ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] DHCP max-lease-time maximum
DHCP uses 16 to represent an infinite lease. Try if it's supported. Anyway, it's insane value as year lease time :) Eero 2016-07-06 11:22 GMT+03:00 Götz Reinicke - IT Koordinator < goetz.reini...@filmakademie.de>: > Hi, > > I m looking for the max value for max-lease-time. would 512640 seconds > (1 year) work? > > Thanks . Götz > > > > > ___ > CentOS mailing list > CentOS@centos.org > https://lists.centos.org/mailman/listinfo/centos > > ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
[CentOS] DHCP max-lease-time maximum
Hi, I m looking for the max value for max-lease-time. would 512640 seconds (1 year) work? Thanks . Götz ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
