DHCP "static" assignments

Sten Carlsen stenc at s-carlsen.dk
Thu Aug 8 20:07:39 UTC 2013

On 08/08/13 21:26, Chris Buxton wrote:
> On Aug 8, 2013, at 9:21 AM, Sten Carlsen <stenc at s-carlsen.dk
> <mailto:stenc at s-carlsen.dk>> wrote:
>> It seems to me that the man-page is not quite in agreement with this:
>> ~~~~
>> The *host* declarations will only match a client if one of their
>> /fixed-address/ statements is viable on the subnet (or shared
>> network) where the client is attached. _Conversely, for a
>> __*host*__declaration to match a client being allocated a dynamic
>> address, it must *not* have any __/fixed-address/__statements. _
>> ~~~~
>> This text says "not have any fixed-address statements", it does not
>> say any fixed addresses in this subnet.
>> I also find the following a bit confusing:
>> ~~~~
>> The /fixed-address/ declaration is used to assign one or more fixed
>> IP addresses to a client. It should only appear in a /host/
>> declaration. If more than one address is supplied, then when the
>> client boots, it will be assigned the address that corresponds to the
>> network on which it is booting._If none of the addresses in the
>> __/fixed-address/__statement are valid for the network to which the
>> client is connected, that client will not match the
>> __/host/__declaration containing that __/fixed-address/__declaration.
>> _Each /address/ in the /fixed-address/ declaration should be either
>> an IP address or a domain name that resolves to one or more IP
>> addresses.
>> ~~~~
>> What does it mean "will not match"? Does that mean that the client is
>> then an "unknown client"?
> These are both good questions.
> In my experience, one should never assume that the DHCP man pages are
> 100% accurate. They are not.
Maybe we could try to improve that situation? First step is to realize
what is not perfect.
> Regards,
> Chris Buxton
> _______________________________________________
> dhcp-users mailing list
> dhcp-users at lists.isc.org
> https://lists.isc.org/mailman/listinfo/dhcp-users

Best regards

Sten Carlsen

No improvements come from shouting:

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