[NTLUG:Discuss] philosophical dhcpcd question

[Chris Cox]

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.