diff --git a/Shorewall/Perl/Shorewall/Providers.pm b/Shorewall/Perl/Shorewall/Providers.pm index f19f60988..3262630bb 100644 --- a/Shorewall/Perl/Shorewall/Providers.pm +++ b/Shorewall/Perl/Shorewall/Providers.pm @@ -228,6 +228,7 @@ sub copy_and_edit_table( $$$$ ) { # for ( split ',', $copy ) { unless ( $copied{$_} ) { + fatal_error "Unknown interface ($_)" unless known_interface($_); push @copy, $_; $copied{$_} = 1; }