How to Reserve a certain Subnet ?

[+RAM+Noname]

I hope anybody can help me with this. I am trying to put a whole Class-C Subnet (111.222.333.0-255) on the reserve list, so i can restrict connections to my server to those clients on that subnet (with the RIP_only option).

I already tried some formats in my sc_serv.rip file, among them that used in the ban file for banning a subnet, which is like "111.222.333.0;0", but nothing worked so far. Is there a possibility without having to type 255 single IP's, or banning out the rest of the internet ?

I am using ShoutCast Server 1.8.9 and DSP 1.8.2b

thx,
Noname.