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Re: Quickdns-Talk Digest #441 - 13/01/00

From: Men & Mice Support
Date: Friday, January 14, 2000
Time: 3:58:00 am

At 4:46 PM -0800 1/13/2000, Erich K. wrote:
>Thank you for the IP encoding explanation and the formula that makes
>it work. As I understand it algebraically an IP address of
>"a.b.c.d" would be calculated at
>( (a*16777216) + (b*65536) + (c*256) + (d)
>
>I am, naturally, still confused about why that would work in
>someone's browser. In practice I have been unable to reach
>addresses encoded this way from my Mac but have had no problem
>getting there using a friend's PC. Is this platform or browser
>specific or a server issue or a dns configuration issue or a virtual
>hosting issue or is it VooDoo?

Interesting. I had never noticed that such URL's don't work on a Mac version of Netscape. It's interesting to note that iCab does indeed know how to interpret these, doing the calculation itself.

Netscape tries to resolve the number. Since this works on Windows, this indicates that the Microsoft TCP/IP stack actually accepts these and converts these to standard dotted-decimal format automatically.

This works without interfering with DNS because a domain name can't start with a number.
____________________________________________________________________
Chris Buxton cbuxton@menandmice.com
Men & Mice http://www.menandmice.com
Makers of: QuickDNS Pro



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