Hi Alex, wanted to give you a fast feedback that this do not work here. I a get an error message "This is the GREEN subnet" whereby it makes no difference which subnet i do enter. The following line $errormessage .= &General::check_net_internal_range($settings{'IP'}); solves it currently. Greetings, Erik Am 07.11.2017 um 15:10 schrieb Alexander Marx: > --- > html/cgi-bin/routing.cgi | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/html/cgi-bin/routing.cgi b/html/cgi-bin/routing.cgi > index 15989bd..f2014e2 100644 > --- a/html/cgi-bin/routing.cgi > +++ b/html/cgi-bin/routing.cgi > @@ -154,7 +154,7 @@ if ($settings{'ACTION'} eq $Lang::tr{'add'}) { > last; > } > #Is the network part of an internal network? > - $errormessage .= &General::check_net_internal($settings{'IP'}); > + $errormessage .= &General::check_net_internal_exact($settings{'IP'}); > last; > } > > -- > 2.7.4 >