dhcp server returns core dump when i define network with mask 8

[Frank Leonhardt]

On 23/07/2013 09:03, jb wrote:
> s m <sam.gh1986 <at> gmail.com> writes:
>
>> ...
>> subnet 192.0.0.0 netmask 255.0.0.0 {
>>      range 192.0.0.1 192.255.255.255;
> The 'range' denotes IP addresses that can be allocated to clients.
> The IP 192.255.255.255 is a reserved broadcast address for the network.
> jb
>
>

It's definitely "bad idea" to try to use it, but it doesn't explain the 
core dump.

Also, using DHCP to dish out addresses that don't belong to you AND 
aren't on a private network (as defined by IANA) will probably lead to 
trouble. Valid private address ranges are:

10.0.0.0 - 10.255.255.255         (private class A)
172.16.0.0 - 172.31.255.255     (private class B x 16)
192.168.0.0 - 192.168.255.255 (private class C x 256)

Which block you use is really a matter of taste - classes haven't been 
used in routing for quite a while so you can consider them all as 
straight blocks but I (for one) still treat them as classed just to help 
me visualise what's what. For example, I'll use one class C per site to 
prevent conflicts over VPN.

192.0.0.0/24 addresses are allocated to real hosts on the wider 
internet, although IIRC some of the lower ones are reserved for use in 
documentation (like example.com) - is that where the idea came from?!? :-)

Regards, Frank.