From: Neil Francis (ccsnjf@bath.ac.uk)
Date: Fri Jun 30 2000 - 02:37:05 CDT
Hi peter - thanks for your reply.
We could do something similar I think. The only issue I have is that we
were thinking of using this method for our students to obtain access to the
network from their student bedrooms. Maybe this is the wrong tool for the
job here as these people would be permanently connected for ~9 months of
the years and I dare say some would like a fixed IP address.
I have not installed netreg yet - am planning to do so next week. Can I
check that once a user is registered they stay in the dhcp.conf file until
they are manually removed. If so this could mean that they can register,
obtain an IP address, have a look at what they have been allocated and then
choose a similar IP address to hardwire in.
In this way their MAC address would appear in the netreg database so it
would look like they were OK when checking against the router ARP tables.
Is this correct or have I missed something?
NEil
At 13:59 29/06/00, Peter Valian wrote:
>Hi Neil,
>
>I am not including this file in the distribution as I think the code is
>pretty proprietary.
>
>The program simply dumps our router's ARP table and searches for MAC
>addresses in the residence halls that are not in the dhcpd.conf file
>(machines that are not registered). Further investigation is delt with
>manually.
>
>NetReg was not written with security in mind however, we are trying to
>patch our holes as we think them up.
>
>I'd like to up this question up to the mailing list to see if anyone
>else has an idea to help fix this.
>
>-peter
>
>--
>Peter Valian
>Network & Systems Administrator
>Southwestern University
>Georgetown, Texas
>
>
>Neil Francis wrote:
> >
> > Hi,
> >
> > Just been reading about your netreg system.
> >
> > Security concerns me slightly. You mention a program you have written
> > called findrogue to aid in finding people who hardwire IP addresses into
> > their PCs.
> >
> > I didn't see this in the distribution I downloaded. Can you tell me more
> > about it?
> >
> > Regards
> > ----------------------
> > Neil Francis
> > n.j.francis@bath.ac.uk
> > Tel: (44) 122 532 3571
> > Bath University Computing Services
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>**********************************************************************
----------------------
Neil Francis
n.j.francis@bath.ac.uk
Tel: (44) 122 532 3571
Bath University Computing Services
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