[NTLUG:Discuss] philosophical dhcpcd question

[Fred James]

Fairly easy, yes, and that's what I am doing.  But is there any reason 
one might want to try to keep the same DHCP assigned IP address, after 
moving the computer to another location/DHCP server/ISP connection? 
 Granted, I am thinking not, but I should very much like to hear other 
opinions.

Chris Cox wrote:

> Fred James wrote:
>
>> OK, but why?  Please understand that this is not a question of how it 
>> is, or what happens, nor am I suggesting the world change to fit my 
>> current whim.  It fairly is easy to understand why we might want a 
>> DHCP client to try to retain a single IP for the duration of its 
>> connection, or possibly even upon reestablishing a failed connection, 
>> as long as it is connected to the same DHCP sever.  But is there any 
>> reason to want that DHCP client to try to keep the same IP it had 
>> before power down, when it is powered up connected to a different 
>> DHCP server? 
>
>
> Technically the client makes the request... the dhcp server can say 
> "no" though and offer back
> a different IP.... on a working dhcp server of course.  If the dhcp 
> server can't tell what
> net your from (a bad configuration), then you could very well end up 
> with the dhcp server
> validating your IP even if it really doesn't fit the segment you're 
> now in.
>
> As others have mentioned, it's fairly easy to clean out the cache so 
> you can start fresh.
>
>
>
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