From: Dragos Ruiu (dr@kyx.net)
Date: Thu Mar 06 2003 - 23:37:18 EST
On Thu, 6 Mar 2003 14:47:01 -0800
Brian Brotschi <brian.brotschi@sygate.com> wrote:
> All;
> I would highly recommend a X.25 protocol analyzer from GN Nettest such as
> the 9410 or 9415 (both of which are PC based). You should be able to find
> such a device as a surplus Test & Measurement equipment.
> brianb
Other good units to snag are the IDACOM (later became HP) PT300, PT302, PT500
and PT502. The multiport ones are cool because you can do full switch emulations
as well as sophisticated MITM. (I'm biased because I was the product manager for
the PT302 and PT502 at their creation)
HP4950's and 4952's (the small little ones that the GN Navtel series were patterned after
and surpassed) had some X.25 software and are very common and easy to find in surplus, and
the HP Network Advisors (the laptop that looks like it was designed by mad scientists in
the russian military), up to the currently sold model all have X.25 capabilities.
Another cool multiport X.25 tester is the Wandel&Goltermann DA-30 (lunchbox sized unit).
The DA30 had some pretty cool ip and ethernet measurements too.
Also look for Tekelec Chameleons (big honkin boxes and later smaller ones in Dolch PC Lunch
boxes) and such.
Ando and Anritsu in Japan also had some interesting X.25 stuff. If you stumble across
any of these in surplus snag them for your needs.
All of those will immensely help your X.25 probing and analysis. There were a couple of
i960/PCI based analyzers too, though those long gone company names escape me now.
To further add emphasis to Brian's wise words:
A real protocol analyzer will let you do many things that will be difficult with just
software and modems/PADs.
cheers,
--dr
-- --dr pgpkey: http://dragos.com/ kyxpgp http://cansecwest 0 = 1 , for large values of zero and small values of one. ---------------------------------------------------------------------------- Are your vulnerability scans producing just another report? Manage the entire remediation process with StillSecure VAM's Vulnerability Repair Workflow. Download a free 15-day trial: http://www2.stillsecure.com/download/sf_vuln_list.html
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