Up until now all I could tell was that Cisco 1130 APs are used. The AP density seems to be overly high but without knowing whether some are used for security or location (monitor mode) it is hard to sure. I lost track of those APs with a blue ring after being moved down countless corridors ;).
I am in the bowel of a large hospital and I can't see many APs but despite this I have noticed a number of issues from the small sample size (5 APs). The low AP count is likely to stem from the fact that the hospital was built in the 1850s and therefore the walls are as thick as one would expect - top quality craftsmanship from the convicts!. The particular walls of my room are no doubt newer but this stuff ain't no drywall! Oh, this floor or section of the floor clearly has no APs deployed either.
Five APs and five Wi-Fi sins
- 2 x APs on adjacent channels (channels 2 and 8 in this case);
- 1 x AP using a 40 MHz channel at 2.4 GHz;
- 2 x APs running WEP;
- 1 x AP running WPA using the TKIP cipher (WPA w/TKIP still hasn't been cracked in any useful way so this may not be a massive issue but WPA2 w/AES is preferred);
- 50% of packets transmitted at 802.11b rates (lower than I usually see but far from fantastic).
Even though the particular area I am currently in only has a small amount of Wi-Fi activity, many bad practices can be seen with a dash of best practice thrown in. Oh, one last thing - according to the nurse I hit up, Vocera badges don't recognise Irish accents very well and there are an influx of them in Perth at the moment (Irish people; not Vocera badges :)). Something to do with the Western Australian mining boom and Ireland in the hole, one suspects ;)