The assumption is that if you want to do what you are describing below,
both client1 and client2 have entries in the server's hosts file, and had
a host block in the dhcp.conf to get them to always get that name/ip.
Most of the tiem thought you don't care aboput the clients getting
different IPs (think windows PCs) because they just use there smb share
names when sharing resources.
charles
On Thu, 27 Jan 2000, Bret Hughes wrote:
>
>
> Charles Galpin wrote:
> >
> > I guess I haven't explained it properly, but I'm not sure If I can do any
> > better than this.
> >
> > When the machine with the ethernet card having the mac address of
> > 00:e0:98:03:9d:7b requests an IP, the dhcp server will lookup the hostname
> > piglet.lhsw.com (where the dns server will look in the hosts file first
> > and in this case finds it is 192.168.1.6) and assigns it to that
> > machine/nic. If it cannot find this hostname's IP, it will assign one from
> > the pool (so you have to either have this name in your hosts file, or be
> > resolveable by dns some other way)
> I understand the fixed IP deal, its the resolving some other way that I
> am wondering about. Take for instance, this scenario.
>
> Dyamically assigined ip address client named client1.
> Another dynamically assigned address client named client2.
> from client1 :
>
> ping client2
>
> Since both clients have dynamically assigned IP addresses, how does one
> get name resolution to work? I can't put it into a host file since I
> don't know the ipaddress and it is likly to change. Same with dns. Am
> I missing a tool that talks to DNS server somehow and tells it the newly
> assigned name-address pair? Is my understanding of the whole name
> resolution thing inadequate and I am worrying about something that will
> work magically? BTW magic is defined in this case as merely something I
> don't understand :)
no I think you understand fine. I hope my explanation above clears up the
confusion
>
> I suppose it makes since to have a fixed ip address for machines that
> supply services that don't change regularly and most machines on the net
> will use like file, database, mailservers and webservers but this sort
> of defeats my vision of what could/should be possible in a perfect
> world.
I make all my linux boxes have fix IP's this way :) There are still enough
advantages having a central hosts file fo rthis to be worth the inital
setup.
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