On 07/01/13 14:17, Reindl Harald wrote:
Am 07.01.2013 20:05, schrieb Bruno Wolff III:
On Mon, Jan 07, 2013 at 13:44:09 -0500,
"Bob Goodwin - Zuni, Virginia, USA" <bobgood...@wildblue.net> wrote:
I know that I can enter 108.160.160.0/24 to block a range of
addresses but if I need to cover a much larger range can I do
108.160.160.0-108.160.175.255 ? Or could I do 108.160.160/24 or
some similar notation?
I think that would be 108.160.160.0/20
yes
http://jodies.de/ipcalc
Address: 108.160.160.0 01101100.10100000.1010 0000.00000000
Netmask: 255.255.240.0 = 20 11111111.11111111.1111 0000.00000000
Wildcard: 0.0.15.255 00000000.00000000.0000 1111.11111111
=>
Network: 108.160.160.0/20 01101100.10100000.1010 0000.00000000 (Class A)
Broadcast: 108.160.175.255 01101100.10100000.1010 1111.11111111
HostMin: 108.160.160.1 01101100.10100000.1010 0000.00000001
HostMax: 108.160.175.254 01101100.10100000.1010 1111.11111110
Hosts/Net: 4094
Thank you, I've saved that.
http://jodies.de/ipcalc does indeed show that /20 is correct but I
don't see a way to arrive at that using that application except by
trial and error?
Bob
--
http://www.qrz.com/db/W2BOD
box7
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