USING RESERVED IP AS A DYNAMICALLY LEASING

[Sten Carlsen]

On 15-06-2020 22.27, Onur GURSOY wrote:
> Hello Mr.Sten,
>
> I got the point.
>
> 1 - Reserved leases, check the man pages. Starting
> point: https://lists.isc.org/pipermail/dhcp-users/2007-January/002723.html 
> I tried this, but i couldn't it. It doesn't work.
>
> on the other side, there is any rfc regarding this implementation
> because because i wasn't expecting this
I am not sure about RFCs. This is how it works.
>
> Thanks,
> With best regards
>
>
> Sten Carlsen <stenc at s-carlsen.dk <mailto:stenc at s-carlsen.dk>>, 15 Haz
> 2020 Pzt, 04:16 tarihinde şunu yazdı:
>
>     I see two options:
>
>     1 - Reserved leases, check the man pages. Starting
>     point: https://lists.isc.org/pipermail/dhcp-users/2007-January/002723.html
>     I never used these myself.
>
>     2 - Split the range in 2 like:
>
>     host bla1 {
>
>                hardware ethernet DD:GH:DF:E5:F7:D7;
>
>                fixed-address 192.168.1.28;
>
>             }
>
>     subnet 192.168.1.0 netmask 255.255.255.0 {
>     range 192.168.1.1 192.168.1.27;
>     range 192.168.1.29 192.168.1.100;
>     }
>
>     BTW you want to move the host statement to the global section.
>     Host statements are global by definition and putting them into a
>     subnet declaration can cause hard to find errors. This is a common
>     mistake.
>
>     -- 
>     Best regards 
>     Sten Carlsen 
>
>
>     For every problem, there is a solution that
>     is simple, elegant, and wrong.
>     HL Mencken
>
>
>>     On 14 Jun 2020, at 22.51, Onur GURSOY <onurgursoygyte at gmail.com
>>     <mailto:onurgursoygyte at gmail.com>> wrote:
>>
>>     Hello Mr.Sten,
>>
>>     This answer is very helpfull for me.
>>     I glad to you.
>>
>>     Yes I'm using it like this in config file.
>>     Let's say,
>>     subnet 192.168.1.0 netmask 255.255.255.0 {
>>     range 192.168.1.1 192.168.1.100;
>>
>>     host bla1 {
>>                hardware ethernet DD:GH:DF:E5:F7:D7;
>>                fixed-address 192.168.1.28;
>>             }
>>     } 
>>     For solution, you suggested: 
>>     *fixed address must be outside any pool or range that you have
>>     set up.  *
>>     *
>>     *
>>     Allright,well,
>>     there are any other solution, for using fixed address in defined
>>     range of pool ? 
>>
>>     Many thanks,
>>     With best regards
>>
>>     Sten Carlsen <stenc at s-carlsen.dk <mailto:stenc at s-carlsen.dk>>, 12
>>     Haz 2020 Cum, 16:42 tarihinde şunu yazdı:
>>
>>
>>         On 12-06-2020 13.29, Onur GURSOY wrote:
>>>         Hello All,
>>>
>>>         First of all, many thanks for isc-dhcp.
>>>         It's realy wonderful especially using with bind.
>>>         But I have some question.
>>>
>>>         If i reserve an IP(let's say 192.168.28.1), to one mac
>>>         (let's say aa:aa:aa:aa:aa:aa).
>>
>>         How is this done?
>>
>>         Using a host statement or marking it reserved in the lease file?
>>
>>         If using a host statement with fixed address, the most likely
>>         problem is that the fixed address must be outside any pool or
>>         range that you have set up.
>>
>>         A host statement with a fixed address does not inform the
>>         dynamic part of the server to not use that address, it is a
>>         very direct shortcut to handing out an address. It is up to
>>         the operator to keep the two out of conflict.
>>
>>>         Another device which has different mac from
>>>         aa:aa:aa:aa:aa:aa, leases 192.168.28.1 IP
>>>         before this device ( aa:aa:aa:aa:aa:aa ) leases that IP
>>>         (192.168.28.1)
>>>
>>>         Why another devices lease 192.168.28.1 even i reserved it
>>>         for that device( aa:aa:aa:aa:aa:aa)
>>>
>>>         Many Thanks,
>>>         With best regards
>>>
>>>         -- 
>>>         Onur GÜRSOY
>>>         R&D Engineer in Embedded Systems
>>>         Master Student at Gebze Institute Of Technology
>>>         Department Of Electronic Engineering
>>>         GSM : 0(545) 764 7653
>>>         e-mail: onurgursoygyte at gmail.com
>>>         <mailto:onurgursoygyte at gmail.com>
>>>
>>>         _______________________________________________
>>>         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 at lists.isc.org <mailto:dhcp-users at lists.isc.org>
>>>         https://lists.isc.org/mailman/listinfo/dhcp-users
>>
>>         -- 
>>         Best regards
>>
>>         Sten Carlsen
>>
>>         No improvements come from shouting:
>>
>>         "MALE BOVINE MANURE!!!" 
>>
>>
>>
>>     -- 
>>     Onur GÜRSOY
>>     R&D Engineer in Embedded Systems
>>     Master Student at Gebze Institute Of Technology
>>     Department Of Electronic Engineering
>>     GSM : 0(545) 764 7653
>>     e-mail: onurgursoygyte at gmail.com <mailto:onurgursoygyte at gmail.com>
>
>
>
> -- 
> Onur GÜRSOY
> R&D Engineer in Embedded Systems
> Master Student at Gebze Institute Of Technology
> Department Of Electronic Engineering
> GSM : 0(545) 764 7653
> e-mail: onurgursoygyte at gmail.com <mailto:onurgursoygyte at gmail.com>

-- 
Best regards

Sten Carlsen

No improvements come from shouting:

"MALE BOVINE MANURE!!!" 

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