ignore hosts

[Anthony R Fletcher]

On 09 Dec 2011 at 15:59:57, Simon Hobson wrote:
> Anthony R Fletcher wrote:
> >We run a non-authoritative DHCP server, version 4.2.1, on a network
> >handing out IP addresses to certain hosts and we want to simply ignore
> >(and not log) the rest. My config file looks like:
> >
> ># Subnet setup.
> >subnet 10.11.12.0 netmask 255.255.255.0
> >{
> >         option routers 10.11.12.1;
> >         option broadcast-address 10.11.12.255;
> >         option subnet-mask 255.255.255.0;
> >
> >	host host1 {
> >		hardware ethernet 00:88:aa:43:00:8d;
> >		fixed-address host1; }
> >	}
> >	#..... many others ....
> >}
> >
> >
> >However we get lots of logs like
> >
> >Dec  9 14:36:55 master dhcpd: DHCPDISCOVER from 00:22:44:d9:cd:e0 
> >via eth0: network 10.11.12.0/24: no free leases
> >
> >How can I not log these messages for certain MACs or all unknown MACs?
> 
> Just use "ignore booting" and they'll be silently ignored. Also, put 
> your host statement OUTSIDE the subnet declaration or you can get 
> some very strange inheritance issues. It probably doesn't affect you, 
> but it's the sort of thing that will catch you out if you do expand.
> 
> I think this ought to do it :
> 
> subnet 10.11.12.0 netmask 255.255.255.0
> {
>    option routers 10.11.12.1;
>    option broadcast-address 10.11.12.255;
>    option subnet-mask 255.255.255.0;
>    ignore booting ;
> }
> 
> group {
>    allow booting ;
>    host host1 {
>      hardware ethernet 00:88:aa:43:00:8d;
>      fixed-address host1; }
>    }
>    #..... many others ....
> }

Just tried this and I'm still getting the messages. :-( I also tried
putting the "ignore booting ;" outside the subnet, with the same copious
log messages.

				Anthony.