[ANSS-netops] ethernet bridges

[Mark E Meremonte]

All sounds great!  However, do any of these radios comply to FIPS 140-2 
wireless security standards.  This especially important if Ethernet link 
is directly to an internal network even with a firewall.  May not be 
important for non-DOI networks but becoming a hot security topic and 
requirement for DOI wireless networks, i.e., "Trusted Internet Connection" 
(TIC).  Last I heard Afar was working on incorporating these requirements 
into their radios and GE-MDS Inet-II radios 
(http://www.microwavedata.com/Products/FullProductList/iNETII900) already 
comply with these AES requirements.

Regards,
Mark

******************************************************************************
Mark E. Meremonte             Geophysicist    USGS/ANSS/NEIC

U.S. Geological Survey      Work: 303-273-8670   Cell: 303-478-5766
MS 966, Box 25046               Email: meremonte at usgs.gov
Denver, CO  80225                Web: http://geohazards.cr.usgs.gov
 
Ship:  U.S. Geological Survey, 1711 Illinois St., Golden, CO 80401
******************************************************************************



"David S. Croker" <croker at usgs.gov> 
Sent by: anss-netops-bounces at geohazards.usgs.gov
10/31/2008 17:41

To
Richard Godbee <rwg at vt.edu>, ANSS NetOps <anss-netops at geohazards.usgs.gov>
cc

Subject
Re: [ANSS-netops] ethernet bridges






Richard,

That's a new company to me.  Very intriguing products.  I could see 
applications for dense arrays or portable reflection arrays.  They 
would probably work fine for our application, except for the power 
consumption.  Our installation is going to require us to use solar 
and batteries at the site end, and at 1A draw, that's a lot.  The 
receive end is in a building so that's no problem except for reduced 
run time during a power outage (think large earthquake, radio on a 
small UPS).  That's still the greatest advantage of Freewave radios.

Thanks for the info.

Dave

At 10:11 AM 10/31/2008, Richard Godbee wrote:
>On Oct 31, 2008, at 12:14 PM, David S. Croker wrote:
>
> > Timely question for us too.  We have an application for just such a
> > short hop "WiFi" link (across a parking lot).  We were thinking about
> > using off-the-shelf wireless routers, but maybe we'll have to rethink
> > things after your experience.
>
>I just discovered this morning that Ubiquiti Networks has several new
>lines of inexpensive, weatherproof 2.4 GHz and 5.8 GHz 802.11 bridges
>that are designed for Wireless ISP deployments.  (Some of them are
>under $100 for a pair with integrated antennas.)  I've never tried any
>of them, but the price is right and the specs look good.
>
>http://www.ubnt.com/products/
>
>The Picostation, Nanostation Loco, and Bullet look especially
>interesting.
>
>
>On Oct 31, 2008, at 12:36 PM, Kyle Persefield wrote:
>
> > I think there was a just one little quirk about the Maxstreams, you
> > have to use matching TX RX pairs.
>
>Yes, the XPress Ethernet Bridges are matched pairs.  If one fails, you
>will have to send both radios in for repair/replacement.
>
>For what it's worth, AvaLAN is now selling point-to-multipoint
>versions of their Ethernet bridges, but they have a *very* significant
>limitation -- each radio can only learn one MAC address on its
>Ethernet port.  If you need to connect more than one device, you have
>to put a router between your devices and the radio.
>
>--
>Richard Godbee, Unix Systems Administrator
>Department of Geosciences, Virginia Tech
>4044 Derring Hall (0420), Blacksburg, VA 24061
>rwg at vt.edu / +1.540.231.7002 / +1.540.231.3386 (FAX)
>_______________________________________________
>ANSS-netops mailing list
>ANSS-netops at geohazards.usgs.gov
>https://geohazards.usgs.gov/mailman/listinfo/anss-netops


_______________________________________________
ANSS-netops mailing list
ANSS-netops at geohazards.usgs.gov
https://geohazards.usgs.gov/mailman/listinfo/anss-netops

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://geohazards.usgs.gov/pipermail/anss-netops/attachments/20081031/e69f93fd/attachment-0001.html