If you look at a network mask in binary, it must always be a series of 1's
(the network part) on the left and the remaining bits on the right are 0's
(the host part). In your example, 255.255.248.0 is
11111111.11111111.11111000.00000000
When you look at the network number (IP address) of the subnet you are
defining in binary, it can have 1's and 0's where the network mask has 1's,
but where the network mask has 0's, the IP address must also all be 0's. In
your case, xxx.4.1.0 is xxxxxxxx.00000100.00000001.00000000 and this shows
that the 1 in xxx.4.1.0 is out of place. You might be wanting xxx.4.8.0
which is xxxxxxxx.00000100.00001000.00000000, but there many other
possibilities, too.
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, September 12, 2001 6:24 AM
To: [EMAIL PROTECTED]
Subject: [FW1] IP address overlaps mask.
When trying to define a network in FW-1 4.0, i got a warning:
Warning: IP address overlaps mask.
I can't figure out why. Am I overlooking somthing here. The network object
looks like this:
Name: Some_network
IP Address: xxx.4.1.0
Net Mask: 255.255.248.0
---
J�rn Yngve Dahl-Stamnes
EDB Teamco, Trondheim
[EMAIL PROTECTED]
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