From: David Bussenschutt (d.bussenschutt@mailbox.gu.edu.au)
Date: Tue Aug 27 2002 - 21:49:28 CDT
Currently I'm testing via OMAPI::DHCP , and I'm iterating through every
possible IP in the subnet/s and checking if a lease is present or not. It
takes less than a half a second to check all 254 IP's in a subnet when
using OMAPI via localhost...and I expect that most of that is the startup
time of perl. I haven't done speed or latency tests of OMAPI over the
net, but as I understand it, it's a very light protocol. I don't think
that ripping through up to a couple of dozen subnets will be much of a
problem, so that should solve most people issues....unless you have 255
class B subnets like I do ;-) (a class C masked into 255 class B's).
David.
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David Bussenschutt Email: D.Bussenschutt@mailbox.gu.edu.au
Senior Computing Support Officer & Systems Administrator/Programmer
RedHat Certified Engineer.
Member of Systems Administrators Guild of Australia.
Location: Griffith University. Information Technology Services
Brisbane Qld. Aust. (TEN bldg. rm 1.33) Ph: (07)38757079
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Robert Lowe <robert.h.lowe@lawrence.edu>
Sent by: owner-netreg@southwestern.edu
28/08/2002 07:40 AM
Please respond to netreg
To: netreg@southwestern.edu
cc:
Subject: Re: NetReg: is anyone using OMAPI ?
"King, Michael" wrote:
>
> Since everyone is looking at OMAPI, I'd figured I'd cross post this,
since I
> just saw it come across the CMU list serve.
Hi Mike!
This uses an unpublished perl module that David has already modified and
tested. My concern is that omapi provides no means of iterating through
the leases. In this example, an IP address is supplied as the key. How
do you find all of the active leases in a subnet, even one that doesn't
end on an octet boundary? Without generating a request for every possible
IP address! Using omapi to register clients is fairly straightforward,
using it for the administrative functions is another story.
The method suggested by Eric Gauthier of recording them in a flat file
in addition to entering them via omapi, may be what has to happen.
-Robert
> >>Doug -
>
> I think I had similar problems with the testing stuff, so I wrote my
own.
> It's now available:
>
> http://www.net.cmu.edu/netreg/cmu-omapi-test.pl
>
> Take a look at the first few lines, because you'll need to give it the
> server IP, omapi key, and a test IP to do its testing. Upon success it
will
> print out the hardware address of the test IP (which is what QuickReg
> neesds)
>
> -Kevin
> <<<
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