Option negation
John Hascall
john at iastate.edu
Tue May 3 20:11:41 UTC 2016
I know that options set in more specific scopes override those set in less
specific scopes, but can I "undo" an option setting? That is, lets imagine
I have this:
option option-66 code 66 = text;
and then in a class scope, I have:
class "someclass" {
match substring(hardware, 1, 3);
*option option-66 "blah blah blah";*}
subclass "
someclass
" 00:0
1
:
02
;
I know that, given that host whatever falls in that class scope, that:
host whatever {
hardware ethernet 00:01:02:03:04:05;
*option option-66 "fe fi fo fum";*
}
works
to change its option
, but what if
I
want *host whatever* not to get
that option at all? How do I do that???
host whatever {
hardware ethernet 00:01:02:03:04:05;
*no option option-66; <== just making this up*
}
Many Thanks!
John
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