tcprules & a subnet

I have yet to figure out how to place an entry in a file
for tcprules that will handle a specific subnet.
I know you can put an entry like 1.2.3. and leave off
the last octet, but that opens the whole class c (as in the above
example) doesn't it? How about 32 ip's right smack dab in the
middle?

Mike
mgcon@getnet.com
http://www.getnet.com/~mgcon
Phoenix, AZ
USA