Wrong gateway when using class in a subnet

Simon Hobson dhcp1 at thehobsons.co.uk
Fri Jun 1 15:22:40 UTC 2012


jeffrey j donovan wrote:

>  	pool {
>		allow members of "ALCATEL-iptouch";
>		allow members of "somePhones";
>		deny members of "FHS";
>		deny members of "smartphones";
>		deny members of "ipod";

It is strongly advised not to mix allow and deny in one place - and 
in this case it is not required anyway. Wherever you have an allow, 
there is an implicit "deny anything not allowed"; and wherever you 
have a deny, there is an implicit "allow anything not denied".

If you mix allow and deny, then the results are not what most people 
expect. I can never remember how it works, but it is **NOT** "work 
down the list until you reach something that matches".

So for this one, all you need to do is allow "ALCATEL-iptouch" and 
"somePhones" - once you've got an allow statement, everything else is 
implicitly denied.

-- 
Simon Hobson

Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed
author Gladys Hobson. Novels - poetry - short stories - ideal as
Christmas stocking fillers. Some available as e-books.


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