12 September 2016 at 2:58pm
The eduroam UK technical specification mandates that an organisations' ORPS must be PINGable from the 3 National RADIUS Proxy servers (NRPS) and from the eduroam UK support site.   This is all part of basic traffic light monitoring (Red/Amber/Green) so we have a 'is their server up?' answer when troubleshooting...  (We're moving to Status-Server in-band RADIUS checking where possible....but neither NPS nor ISE (nor previous versions - IAS or ACS) support that :(  ) however, Azure blocks ICMP, thus PING is unavailable.
1 August 2014 at 11:41am
I've spent a fair bit of time over the past month trying to improve the reliability of our RADIUS service for eduroam.  Previously it was entirely based on Microsoft NPS which has the tendency to silently discard authentication packets which it should really be rejecting. This creates a problem because if the authentication request originated from outside of your network (i.e.
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