nanog mailing list archives
Re: Managing allocatiions out of a CIDR block
From: Phil Howard <phil () charon milepost com>
Date: Tue, 10 Feb 1998 16:22:14 -0600 (CST)
Mark Prior writes...
I am trying to rewrite the system that we use to allocate blocks from our provider blocks to customers. Previously the smallest block we allocated was a class C and so this process was pretty easy but now I want to be able to optimally use our allocations and allocate blocks down to a /30. Does anyone have any ideas, or code, that will manage multiple CIDR blocks and keep track of the currently unused parts of the block and given a requirement find an appropriate allocation (while not fragmenting it like crazy). It would be also useful if it could collect together POP specific blocks so that, for example, two parts of the same class C were at the same POP. Ideas, suggestions?
I started writing one of these. I've been busy so it has been wallowing in some subdirectory. But it will be web page based using CGI. Any browser can access it (with authorization and valid IP) so people who work from Win95 or Mac or UNIX workstations can access it. It is being written in C and is to be tested under Apache on Linux, but will probably work fairly well on any UNIX with a CGI conforming HTTP server. It will need its own userid to run as (root not advised, but the personal userid of the network administrator would work). It will be completely CIDR. So if you add or delete or assign a /23 you will be working with an aligned pair of class-C networks as one. It will keep its own data files so no special DB server is needed (there isn't that much to keep). It will generate SWIP templates and allocation reports usable to request more space. Any other features you think should be in it before I get too far along in the basic design? At this time I don't know when it will be complete. Looks like 2-4 months. Could be more. Less if my own need for it increases to where I can justify more time in it. I just completed the CGI for my "Grass Roots Servers" project and you can see a sample of my work (with source) at this location: http://www.best.com/~philh/grs/ (click on "The TLD selector") -- Phil Howard | die7spam () anyplace net crash328 () nowhere8 com ads2suck () dumb7ads com phil | blow9me3 () nowhere3 com stop2it9 () no6where com die9spam () spammer7 org at | end1ads5 () spammer9 edu blow2me8 () lame5ads edu suck4it8 () anyplace org milepost | stop3it1 () nowhere7 com w6x9y8z7 () noplace9 org w7x5y0z9 () noplace8 com dot | ads6suck () anywhere org stop8ads () anywhere org stop0it5 () lame0ads edu com | stop2ads () no9place net eat1this () noplace0 com die5spam () spammer1 org
Current thread:
- Managing allocatiions out of a CIDR block Mark Prior (Feb 10)
- Re: Managing allocatiions out of a CIDR block Eric M. Carroll (Feb 10)
- Re: Managing allocatiions out of a CIDR block Michael K. Sanders (Feb 10)
- Re: Managing allocatiions out of a CIDR block Phil Howard (Feb 10)
- Summary: Managing allocatiions out of a CIDR block Mark Prior (Feb 25)