[107145] in North American Network Operators' Group
Re: interger to I P address
daemon@ATHENA.MIT.EDU (Shadow)
Wed Aug 27 10:58:57 2008
Date: Wed, 27 Aug 2008 10:25:10 -0400 (EDT)
From: Shadow <shadow@apollo.gti.net>
To: "Robert D. Scott" <robert@ufl.edu>
In-Reply-To: <48B55EED.4070700@karnaugh.za.net>
Cc: nanog@nanog.org
Errors-To: nanog-bounces@nanog.org
Robert D. Scott wrote:
> The harder way:
>
> Decimal: 1089055123
> Hex (dashes inserted at octals): 40-E9-A9-93
> Decimal (of each octet): 64-233-169-147
> IP Address: 64.233.169.147
The "this could take all day" way :
(in bc with scale=0 for integer portions only)
1089055123/(2^24)%(2^8)
64
1089055123/(2^16)%(2^8)
233
1089055123/(2^8)%(2^8)
169
1089055123/(2^0)%(2^8)
147
(Note: 2^0=1 & x/1=x so last line could reduce to 1089055123%(2^8).)
-Nicholas
shadow@gti.net
