Why can't I forward a /23

General
1

In the conditional forwarding section, why can I only forward a /8,16,24,32? There are so many networks in between.

2

Because these are the subnets supported by dnsmasq.

3

Dang, I didn't realize dnsmasq was so limiting. Well this blows

4

See here for more details (posts from DL6ER)