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 From:  Thomas Hertz <term at cynisk dot net>
 To:  m0n0wall at lists dot m0n0 dot ch
 Subject:  Re: [m0n0wall] block IP range (MSN)
 Date:  Mon, 28 Jun 2004 20:53:48 +0200
Hello Hendrik,

The number after the dash is the number of 1:s in the netmask. An example: equals a netmask of equals a netmask of
and so on.

You're probably looking for


Thomas Hertz

On Monday 28 June 2004 20.45, Hendrik Highwave wrote:
> Dear m0nwall friends,
> I would like to block the MSN servers on the m0nwall firewall (version 1.0)
> and block the complete IP range for example from to
> I created a firewall rule, but I don't understand blocking the complete IP
> range. I selected destination, type "network" and entered the ip address
> After thatI I have to select a number after the slash (/1.. /2.../3.......
> ./31), but I don't know what.
> Can anyone explain me how it works?
> Kind regards,
> Hendrik
> The Netherlands