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08-11-2003, 05:57 AM
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#1 |
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Member (10 bit)
Join Date: Jan 2001
Location: Birmingham, UK.
Posts: 553
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Subnet Masks
OK we use manually configured ip addresses all start with 192.168.13.x at present.
But we are running low on ips so I thought I'd move all local versions of websites onto 192.168.14.x. Thing is any computer configured with a 192.168.13.x ip can't see any of the websites now. How can I set it up so they can? *UPDATE* If I change the subnet mask on a computer from 255.255.255.0 to 255.255.0.0 then everything works fine. Can anyone explain what this actually does? Cheers DJ Last edited by dj4uk; 08-11-2003 at 10:05 AM. |
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08-13-2003, 12:42 AM
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#2 |
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Member (9 bit)
Join Date: May 2002
Posts: 298
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The computer uses the subnet mask to do bitwise (1's and 0's) mathematics against the IP address. An IP of 192.168.3.x with mask of 255.255.255.0 means that there will only be 1 network available with address of 192.168.3.0, giving you 254 available hosts, from 1 to 254. A mask of 255.255.0.0 means that you will only have 1 network available with the address of 192.168.0.0, giving you somewhat more than 64,000 hosts, from 0.1 to 254.254
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08-13-2003, 07:40 AM
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#3 |
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Member (10 bit)
Join Date: Jan 2001
Location: Birmingham, UK.
Posts: 553
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Ah right I've got it!
Thanks! |
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