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

Frank Leonhardt frank2 at fjl.co.uk
Tue Jul 23 08:26:32 UTC 2013

On 23/07/2013 09:03, jb wrote:
> s m <sam.gh1986 <at> gmail.com> writes:
>> ...
>> subnet netmask {
>>      range;
> The 'range' denotes IP addresses that can be allocated to clients.
> The IP 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: -         (private class A) -     (private class B x 16) - (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. 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.

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