host name

[Hai Tao]

how can mac address be "not unique"? mac address is global identical, right?
   in my example host statement, if the mac address come from a certain subnet, it will get a fixed ip, no matter what the hostname is. I really do not see anytime that hostname will be looked up.
Pascal Gienger <Pascal.Gienger at uni-konstanz.de> wrote:
  Hai Tao wrote:

> when I have following statement in the dhcpd.conf file:
>
> host { hardware ethernet 00:05:5D:80:A5:F6; fixed-address 192.168.0.20;}
>
> I can not pass the syntax check, and I can not even force to start the
> dhcpd.
> why do isc force us to add a "useless" hostname, which doesn't really
> affect anything, as mac address is the real identifier.

The hostname is the unique identifier as the MAC address isn't unique. You 
may have the same MAC address statement on different subnets.

You are free to use e.g. m00055d80a5f6 as a hostname (letter + your mac 
address) if your mac addresses are unique.





Sincerely, 

Hai Tao 


taoh666 at yahoo.com